1 files changed, 96 insertions, 0 deletions
diff --git a/proto-wine/proton.cpp b/proto-wine/proton.cpp
new file mode 100644
index 00000000..c36dbc86
--- /dev/null
+++ b/proto-wine/proton.cpp
@@ -0,0 +1,96 @@
+/* Copyright (c) 2019 Stanislaw Halik <sthalik@misaki.pl>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+
+#ifndef OTR_WINE_NO_WRAPPER
+
+#include <sys/types.h>
+#include <pwd.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <memory>
+
+#include <QtGlobal>
+#include <QString>
+#include <QProcessEnvironment>
+#include <QDebug>
+
+static QString home_directory()
+{
+    struct passwd *pwptr = nullptr, pw{};
+    uid_t uid = getuid();
+    int shift = 16;
+    do {
+        auto buf = std::make_unique<char[]>(1 << shift);
+        int error = getpwuid_r(uid, &pw, buf.get(), 1 << shift, &pwptr);
+        if (error)
+        {
+            if (errno != EDOM)
+                return {};
+            else
+                continue;
+        }
+        else
+            break;
+    } while (++shift < 28);
+
+    if (!pwptr)
+        return {};
+
+    return pwptr->pw_dir;
+}
+
+QProcessEnvironment make_steam_environ(const QString& proton_version)
+{
+    auto ret = QProcessEnvironment::systemEnvironment();
+    QString home = home_directory();
+
+    auto expand = [&](QString x) {
+        x.replace("HOME", home);
+        x.replace("PROTON", proton_version);
+        return x;
+    };
+
+    QString path = expand(
+        "HOME/.local/share/Steam/steamapps/common/Proton PROTON/dist/bin:"
+        "HOME/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/bin:"
+        "HOME/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/usr/bin"
+    );
+    path += ':'; path += qgetenv("PATH");
+    ret.insert("PATH", path);
+
+    QString library_path = expand(
+        ":HOME/.local/share/Steam/steamapps/common/Proton PROTON/dist/lib"
+        ":HOME/.local/share/Steam/steamapps/common/Proton PROTON/dist/lib64"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/pinned_libs_32"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/pinned_libs_64"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/i386/lib/i386-linux-gnu"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/i386/lib"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/lib/x86_64-linux-gnu"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/lib"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/usr/lib/x86_64-linux-gnu"
+        ":HOME/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/usr/lib"
+    );
+    library_path += ':'; library_path += qgetenv("LD_LIBRARY_PATH");
+    ret.insert("LD_LIBRARY_PATH", library_path);
+
+    ret.insert("WINEPREFIX", expand("HOME/.local/share/Steam/steamapps/compatdata/805550/pfx"));
+    ret.insert("WINEESYNC", "1");
+
+    return ret;
+}
+
+QString proton_path(const QString& proton_version)
+{
+    QString wine_path = "HOME/.local/share/Steam/steamapps/common/Proton PROTON/dist/bin/wine";
+    wine_path.replace("HOME", home_directory()); wine_path.replace("PROTON", proton_version);
+    return wine_path;
+}
+
+#endif