Add efacf056cd

dockerdoom/trunk/pcsound/pcsound_win32.c

@@ -0,0 +1,117 @@
+// Emacs style mode select   -*- C++ -*- 
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 2007 Simon Howard
+//
+// 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 (at your option) 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, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+//
+// DESCRIPTION:
+//    PC speaker interface.
+//
+//-----------------------------------------------------------------------------
+
+#ifdef _WIN32
+
+#include "SDL.h"
+#include "SDL_thread.h"
+#include <windows.h>
+
+#include "pcsound.h"
+#include "pcsound_internal.h"
+
+static SDL_Thread *sound_thread_handle;
+static int sound_thread_running;
+static pcsound_callback_func callback;
+
+static int SoundThread(void *unused)
+{
+    int frequency;
+    int duration;
+    
+    while (sound_thread_running)
+    {
+        callback(&duration, &frequency);
+
+        if (frequency != 0) 
+        {
+            Beep(frequency, duration);
+        }
+        else
+        {
+            Sleep(duration);
+        }
+    }
+    
+    return 0;    
+}
+
+static int PCSound_Win32_Init(pcsound_callback_func callback_func)
+{
+    OSVERSIONINFO osvi;
+    BOOL result;
+
+    // Temporarily disabled - the Windows scheduler is strange and 
+    // stupid.
+   
+    return 0;
+
+    // Find the OS version
+
+    osvi.dwOSVersionInfoSize = sizeof(osvi);
+
+    result = GetVersionEx(&osvi);
+
+    if (!result)
+    {
+        return 0;
+    }
+
+    // Beep() ignores its arguments on win9x, so this driver will
+    // not work there.
+
+    if (osvi.dwPlatformId != VER_PLATFORM_WIN32_NT)
+    {
+        // TODO: Use _out() to write directly to the PC speaker on
+        // win9x: See PC/winsound.c in the Python standard library.
+
+        return 0;
+    }
+    
+    // Start a thread to play sound.
+
+    callback = callback_func;
+    sound_thread_running = 1;
+
+    sound_thread_handle = SDL_CreateThread(SoundThread, NULL);
+
+    return 1;
+}
+
+static void PCSound_Win32_Shutdown(void)
+{
+    sound_thread_running = 0;
+    SDL_WaitThread(sound_thread_handle, NULL);
+}
+
+pcsound_driver_t pcsound_win32_driver = 
+{
+    "Windows",
+    PCSound_Win32_Init,
+    PCSound_Win32_Shutdown,
+};
+
+#endif /* #ifdef _WIN32 */
+