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-rw-r--r--pcsound/pcsound.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/pcsound/pcsound.c b/pcsound/pcsound.c
new file mode 100644
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--- /dev/null
+++ b/pcsound/pcsound.c
@@ -0,0 +1,114 @@
+// 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.
+//
+//-----------------------------------------------------------------------------
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "pcsound.h"
+
+#ifdef _WIN32
+extern pcsound_driver_t pcsound_win32_driver;
+#endif
+extern pcsound_driver_t pcsound_sdl_driver;
+
+static pcsound_driver_t *drivers[] =
+{
+#ifdef _WIN32
+ &pcsound_win32_driver,
+#endif
+ &pcsound_sdl_driver,
+ NULL,
+};
+
+static pcsound_driver_t *pcsound_driver = NULL;
+
+int PCSound_Init(pcsound_callback_func callback_func)
+{
+ char *driver_name;
+ int i;
+
+ if (pcsound_driver != NULL)
+ {
+ return 1;
+ }
+
+ // Check if the environment variable is set
+
+ driver_name = getenv("PCSOUND_DRIVER");
+
+ if (driver_name != NULL)
+ {
+ for (i=0; drivers[i] != NULL; ++i)
+ {
+ if (!strcasecmp(drivers[i]->name, driver_name))
+ {
+ // Found the driver!
+
+ if (drivers[i]->init_func(callback_func))
+ {
+ pcsound_driver = drivers[i];
+ }
+ else
+ {
+ printf("Failed to initialise PC sound driver: %s\n",
+ drivers[i]->name);
+ break;
+ }
+ }
+ }
+ }
+ else
+ {
+ // Try all drivers until we find a working one
+
+ for (i=0; drivers[i] != NULL; ++i)
+ {
+ if (drivers[i]->init_func(callback_func))
+ {
+ pcsound_driver = drivers[i];
+ break;
+ }
+ }
+ }
+
+ if (pcsound_driver != NULL)
+ {
+ printf("Using PC sound driver: %s\n", pcsound_driver->name);
+ return 1;
+ }
+ else
+ {
+ printf("Failed to find a working PC sound driver.\n");
+ return 0;
+ }
+}
+
+void PCSound_Shutdown(void)
+{
+ pcsound_driver->shutdown_func();
+ pcsound_driver = NULL;
+}
+