1 files changed, 68 insertions, 0 deletions
diff --git a/plugins/adplug/adplug/hsp.cpp b/plugins/adplug/adplug/hsp.cpp
new file mode 100644
index 00000000..0430f6d7
--- /dev/null
+++ b/plugins/adplug/adplug/hsp.cpp
@@ -0,0 +1,68 @@
+/*
+ * Adplug - Replayer for many OPL2/OPL3 audio file formats.
+ * Copyright (C) 1999 - 2004 Simon Peter, <dn.tlp@gmx.net>, et al.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * This library 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * hsp.cpp - HSP Loader by Simon Peter <dn.tlp@gmx.net>
+ */
+
+#include <string.h>
+
+#include "hsp.h"
+
+CPlayer *ChspLoader::factory(Copl *newopl)
+{
+  return new ChspLoader(newopl);
+}
+
+bool ChspLoader::load(const std::string &filename, const CFileProvider &fp)
+{
+  binistream	*f = fp.open(filename); if(!f) return false;
+  unsigned long	i, j, orgsize, filesize;
+  unsigned char	*cmp, *org;
+
+  // file validation section
+  if(!fp.extension(filename, ".hsp")) { fp.close(f); return false; }
+
+  filesize = fp.filesize(f);
+  orgsize = f->readInt(2);
+  if(orgsize > 59187) { fp.close(f); return false; }
+
+  // load section
+  cmp = new unsigned char[filesize];
+  for(i = 0; i < filesize; i++) cmp[i] = f->readInt(1);
+  fp.close(f);
+
+  org = new unsigned char[orgsize];
+  for(i = 0, j = 0; i < filesize; j += cmp[i], i += 2) {	// RLE decompress
+    if(j >= orgsize) break;	// memory boundary check
+    memset(org + j, cmp[i + 1], j + cmp[i] < orgsize ? cmp[i] : orgsize - j - 1);
+  }
+  delete [] cmp;
+
+  memcpy(instr, org, 128 * 12);		// instruments
+  for(i = 0; i < 128; i++) {		// correct instruments
+    instr[i][2] ^= (instr[i][2] & 0x40) << 1;
+    instr[i][3] ^= (instr[i][3] & 0x40) << 1;
+    instr[i][11] >>= 4;		// slide
+  }
+  memcpy(song, org + 128 * 12, 51);	// tracklist
+  memcpy(patterns, org + 128 * 12 + 51, orgsize - 128 * 12 - 51);	// patterns
+  delete [] org;
+
+  rewind(0);
+  return true;
+}