Reordering dd_sndlib and dd_lnxsound into sndlib

Consolidate all sound related code into one module.

sndlib/ssl_lib.cpp

@@ -0,0 +1,83 @@
+/*
+* Descent 3 
+* Copyright (C) 2024 Parallax Software
+*
+* 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 3 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, see <http://www.gnu.org/licenses/>.
+
+--- HISTORICAL COMMENTS FOLLOW ---
+
+ * $Source: $
+ * $Revision: 3 $
+ * $Author: Chris $
+ * $Date: 10/08/99 4:28p $
+ *
+ * This takes care of any code not exclusive to Win32 Ds3dlib.cpp but part of library
+ *
+ * $Log: /DescentIII/Main/dd_sndlib/ssl_lib.cpp $
+ *
+ * 3     10/08/99 4:28p Chris
+ * Added the forcefield and glass breaking override options
+ *
+ * 2     4/06/99 8:29p Samir
+ * added error check system.
+ *
+ * 1     4/06/99 8:16p Samir
+ * Initial rev.
+ *
+ */
+
+#include <cstdarg>
+#include <cstdio>
+
+#include "ssl_lib.h"
+#include "pserror.h"
+
+#include <string.h>
+
+llsSystem::llsSystem() {
+  m_lib_error_code = SSL_OK;
+  m_geometry = NULL;
+}
+
+void llsSystem::CheckForErrors() {
+  // if a fatal error occurred, quit and display an error
+  // non fatal errors should be put inside a logfile, or just mprinted out.
+
+  strcpy(m_error_text, "Internal Sound Error: ");
+  m_lib_error_code = SSL_OK;
+}
+
+void llsSystem::ErrorText(const char *fmt, ...) {
+  std::va_list arglist;
+  char buf[128];
+  int len, slen;
+
+  slen = strlen(m_error_text);
+
+  if ((slen + 2) > sizeof(m_error_text)) {
+    return;
+  }
+
+  strcat(m_error_text, "\n");
+  va_start(arglist, fmt);
+  len = std::vsnprintf(buf, 128, fmt, arglist);
+  va_end(arglist);
+  if (len < 0)
+    return;
+
+  if ((slen + strlen(buf) + 1) > sizeof(m_error_text)) {
+    return;
+  }
+  strcat(m_error_text, buf);
+}