Move environment functions into separate file.

1 files changed, 79 insertions, 0 deletions

diff --git a/src/utils/env.cpp b/src/utils/env.cpp
new file mode 100644
index 000000000..9ef3d67d0
--- /dev/null
+++ b/src/utils/env.cpp
@@ -0,0 +1,79 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2011-2015  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "utils/env.h"
+
+#include "configuration.h"
+#include "logger.h"
+#include "settings.h"
+
+#include <stdlib.h>
+
+#include "debug.h"
+
+void updateEnv()
+{
+#if defined(WIN32) || defined(__APPLE__)
+    if (config.getBoolValue("centerwindow"))
+        setEnv("SDL_VIDEO_CENTERED", "1");
+    else
+        setEnv("SDL_VIDEO_CENTERED", "0");
+#endif
+
+    if (config.getBoolValue("allowscreensaver"))
+        setEnv("SDL_VIDEO_ALLOW_SCREENSAVER", "1");
+    else
+        setEnv("SDL_VIDEO_ALLOW_SCREENSAVER", "0");
+
+#ifndef WIN32
+    const int vsync = settings.options.test.empty()
+        ? config.getIntValue("vsync") : 1;
+    // __GL_SYNC_TO_VBLANK is nvidia variable.
+    // vblank_mode is MESA variable.
+    switch (vsync)
+    {
+        case 1:
+            setEnv("__GL_SYNC_TO_VBLANK", "0");
+            setEnv("vblank_mode", "0");
+            break;
+        case 2:
+            setEnv("__GL_SYNC_TO_VBLANK", "1");
+            setEnv("vblank_mode", "1");
+            break;
+        default:
+            break;
+    }
+#endif
+}
+
+void setEnv(const char *const name, const char *const value)
+{
+    if (!name || !value)
+        return;
+#ifdef WIN32
+    if (putenv(const_cast<char*>((std::string(name)
+        + "=" + value).c_str())))
+#else
+    if (setenv(name, value, 1))
+#endif
+    {
+        logger->log("setenv failed: %s=%s", name, value);
+    }
+}