Change process priority depend on game state.

implimented only for windows version.

4 files changed, 22 insertions, 0 deletions

diff --git a/src/game.cpp b/src/game.cpp
index c024c41dc..d5cebe6a1 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -89,6 +89,7 @@
 #include "utils/gettext.h"
 #include "utils/mkdir.h"
 #include "utils/physfstools.h"
+#include "utils/process.h"
 
 #include <guichan/exception.hpp>
 #include <guichan/focushandler.hpp>
@@ -863,6 +864,7 @@ void Game::handleActive(const SDL_Event &event)
                 fpsLimit = config.getIntValue("fpslimit");
             if (player_node)
                 player_node->setHalfAway(false);
+            setPriority(true);
         }
         else
         {   // window minimisation
@@ -875,6 +877,7 @@ void Game::handleActive(const SDL_Event &event)
                 fpsLimit = config.getIntValue("altfpslimit");
                 player_node->setHalfAway(true);
             }
+            setPriority(false);
 #endif
         }
         if (player_node)
diff --git a/src/main.cpp b/src/main.cpp
index 0266dde21..a7817d31a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -33,6 +33,7 @@
 #include "utils/mkdir.h"
 #endif
 #include "utils/paths.h"
+#include "utils/process.h"
 #include "utils/physfstools.h"
 #include "utils/xml.h"
 
@@ -264,6 +265,7 @@ int main(int argc, char *argv[])
 #ifdef WIN32
     SetCurrentDirectory(PhysFs::getBaseDir());
 #endif
+    setPriority(true);
     Client client(options);
     if (!options.testMode)
     {
diff --git a/src/utils/process.cpp b/src/utils/process.cpp
index b424b42e3..1efd850cc 100644
--- a/src/utils/process.cpp
+++ b/src/utils/process.cpp
@@ -257,3 +257,18 @@ bool openBrowser(std::string url)
 }
 
 #endif
+
+#ifdef WIN32
+void setPriority(const bool big)
+{
+    HANDLE hCurrentProcess = GetCurrentProcess();
+    if (big)
+        SetPriorityClass(hCurrentProcess, ABOVE_NORMAL_PRIORITY_CLASS);
+    else
+        SetPriorityClass(hCurrentProcess, BELOW_NORMAL_PRIORITY_CLASS);
+}
+#else
+void setPriority(const bool big A_UNUSED)
+{
+}
+#endif
diff --git a/src/utils/process.h b/src/utils/process.h
index 6b34fd22d..95c868372 100644
--- a/src/utils/process.h
+++ b/src/utils/process.h
@@ -31,4 +31,6 @@ bool execFile(std::string pathName, std::string name,
 
 bool openBrowser(std::string url);
 
+void setPriority(const bool big);
+
 #endif // UTILS_PROCESS_H