From ec9aab2c467b0556f2ef679ef912055c6a77c2fc Mon Sep 17 00:00:00 2001
From: Davide Beatrici <git@davidebeatrici.dev>
Date: Fri, 3 Mar 2023 05:09:20 +0100
Subject: [PATCH] mmdevapi: Use UTF-16 for client name in "test_connect_params"
 and "create_stream_params" structs.

The conversion to another encoding is now up to the unixlib.
---
 dlls/mmdevapi/unixlib.h       |  4 ++--
 dlls/winepulse.drv/mmdevdrv.c | 23 ++++++-----------------
 dlls/winepulse.drv/pulse.c    | 21 +++++++++++++++++++--
 3 files changed, 27 insertions(+), 21 deletions(-)

diff --git a/dlls/mmdevapi/unixlib.h b/dlls/mmdevapi/unixlib.h
index ea0d2f9c4b9..37b4c53cb35 100644
--- a/dlls/mmdevapi/unixlib.h
+++ b/dlls/mmdevapi/unixlib.h
@@ -53,7 +53,7 @@ struct get_endpoint_ids_params
 
 struct create_stream_params
 {
-    const char *name;
+    const WCHAR *name;
     const char *device;
     EDataFlow flow;
     AUDCLNT_SHAREMODE share;
@@ -219,7 +219,7 @@ struct set_event_handle_params
 
 struct test_connect_params
 {
-    const char *name;
+    const WCHAR *name;
     enum driver_priority priority;
 };
 
diff --git a/dlls/winepulse.drv/mmdevdrv.c b/dlls/winepulse.drv/mmdevdrv.c
index 99dbe24c82f..9a6939e959c 100644
--- a/dlls/winepulse.drv/mmdevdrv.c
+++ b/dlls/winepulse.drv/mmdevdrv.c
@@ -23,6 +23,7 @@
 
 #include <stdarg.h>
 #include <assert.h>
+#include <wchar.h>
 
 #include "windef.h"
 #include "winbase.h"
@@ -247,11 +248,9 @@ static BOOL query_productname(void *data, LANGANDCODEPAGE *lang, LPVOID *buffer,
     return VerQueryValueW(data, pn, buffer, len) && *len;
 }
 
-static char *get_application_name(BOOL query_app_name)
+static WCHAR *get_application_name(BOOL query_app_name)
 {
     WCHAR path[MAX_PATH], *name;
-    char *str = NULL;
-    size_t len;
 
     GetModuleFileNameW(NULL, path, ARRAY_SIZE(path));
 
@@ -327,15 +326,9 @@ static char *get_application_name(BOOL query_app_name)
             }
         }
 
-        if (found) {
-            len = WideCharToMultiByte(CP_UTF8, 0, productname, -1, NULL, 0, NULL, NULL);
-            str = malloc(len);
-            if (str) WideCharToMultiByte(CP_UTF8, 0, productname, -1, str, len, NULL, NULL);
-        }
-
     skip:
         free(data);
-        if (str) return str;
+        if (found) return wcsdup(productname);
     }
 
     name = wcsrchr(path, '\\');
@@ -343,11 +336,7 @@ static char *get_application_name(BOOL query_app_name)
         name = path;
     else
         name++;
-    len = WideCharToMultiByte(CP_UTF8, 0, name, -1, NULL, 0, NULL, NULL);
-    if (!(str = malloc(len)))
-        return NULL;
-    WideCharToMultiByte(CP_UNIXCP, 0, name, -1, str, len, NULL, NULL);
-    return str;
+    return wcsdup(name);
 }
 
 static DWORD WINAPI pulse_timer_cb(void *user)
@@ -481,7 +470,7 @@ end:
 int WINAPI AUDDRV_GetPriority(void)
 {
     struct test_connect_params params;
-    char *name;
+    WCHAR *name;
 
     params.name = name = get_application_name(FALSE);
     pulse_call(test_connect, &params);
@@ -817,7 +806,7 @@ static HRESULT WINAPI AudioClient_Initialize(IAudioClient3 *iface,
     struct create_stream_params params;
     unsigned int i, channel_count;
     stream_handle stream;
-    char *name;
+    WCHAR *name;
     HRESULT hr;
 
     TRACE("(%p)->(%x, %lx, %s, %s, %p, %s)\n", This, mode, flags,
diff --git a/dlls/winepulse.drv/pulse.c b/dlls/winepulse.drv/pulse.c
index 900b77415a8..28afb5b788d 100644
--- a/dlls/winepulse.drv/pulse.c
+++ b/dlls/winepulse.drv/pulse.c
@@ -196,6 +196,14 @@ static int muldiv(int a, int b, int c)
     return ret;
 }
 
+static char *wstr_to_str(const WCHAR *wstr)
+{
+    const int len = wcslen(wstr);
+    char *str = malloc(len * 3 + 1);
+    ntdll_wcstoumbs(wstr, len + 1, str, len * 3 + 1, FALSE);
+    return str;
+}
+
 /* Following pulseaudio design here, mainloop has the lock taken whenever
  * it is handling something for pulse, and the lock is required whenever
  * doing any pa_* call that can affect the state in any way
@@ -765,13 +773,17 @@ static NTSTATUS pulse_test_connect(void *args)
     PhysDevice *dev;
     pa_operation *o;
     int ret;
+    char *name = wstr_to_str(params->name);
 
     pulse_lock();
     pulse_ml = pa_mainloop_new();
 
     pa_mainloop_set_poll_func(pulse_ml, pulse_poll_func, NULL);
 
-    pulse_ctx = pa_context_new(pa_mainloop_get_api(pulse_ml), params->name);
+    pulse_ctx = pa_context_new(pa_mainloop_get_api(pulse_ml), name);
+
+    free(name);
+
     if (!pulse_ctx) {
         ERR("Failed to create context\n");
         pa_mainloop_free(pulse_ml);
@@ -1104,10 +1116,15 @@ static NTSTATUS pulse_create_stream(void *args)
     struct pulse_stream *stream;
     unsigned int i, bufsize_bytes;
     HRESULT hr;
+    char *name = wstr_to_str(params->name);
 
     pulse_lock();
 
-    if (FAILED(params->result = pulse_connect(params->name)))
+    params->result = pulse_connect(name);
+
+    free(name);
+
+    if (FAILED(params->result))
     {
         pulse_unlock();
         return STATUS_SUCCESS;
-- 
2.11.4.GIT