1 files changed, 118 insertions, 0 deletions
diff --git a/libdvdnav/decoder.h b/libdvdnav/decoder.h
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+++ b/libdvdnav/decoder.h
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+/*
+ * Copyright (C) 2000, 2001 Martin Norb�k, H�an Hjort
+ * 
+ * This file is part of libdvdnav, a DVD navigation library. It is modified
+ * from a file originally part of the Ogle DVD player.
+ * 
+ * libdvdnav 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.
+ * 
+ * libdvdnav 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ *
+ * $Id: decoder.h,v 1.9 2004/03/16 11:43:38 mroi Exp $
+ *
+ */
+
+#ifndef DECODER_H_INCLUDED
+#define DECODER_H_INCLUDED
+
+#include "common.h"
+#include <sys/time.h>
+
+/*  vm_cmd_t */
+#include "dvdnav_internal.h"
+
+/* link command types */
+typedef enum {
+  LinkNoLink  = 0,
+
+  LinkTopC    = 1,
+  LinkNextC   = 2,
+  LinkPrevC   = 3,
+
+  LinkTopPG   = 5,
+  LinkNextPG  = 6,
+  LinkPrevPG  = 7,
+
+  LinkTopPGC  = 9,
+  LinkNextPGC = 10,
+  LinkPrevPGC = 11,
+  LinkGoUpPGC = 12,
+  LinkTailPGC = 13,
+
+  LinkRSM     = 16,
+
+  LinkPGCN,
+  LinkPTTN,
+  LinkPGN,
+  LinkCN,
+
+  Exit,
+
+  JumpTT, /* 22 */
+  JumpVTS_TT,
+  JumpVTS_PTT,
+
+  JumpSS_FP,
+  JumpSS_VMGM_MENU,
+  JumpSS_VTSM,
+  JumpSS_VMGM_PGC,
+
+  CallSS_FP, /* 29 */
+  CallSS_VMGM_MENU,
+  CallSS_VTSM,
+  CallSS_VMGM_PGC,
+
+  PlayThis
+} link_cmd_t;
+
+/* a link's data set */
+typedef struct {
+  link_cmd_t command;
+  uint16_t   data1;
+  uint16_t   data2;
+  uint16_t   data3;
+} link_t;
+
+/* the VM registers */
+typedef struct {
+  uint16_t SPRM[24];
+  uint16_t GPRM[16];
+  uint8_t  GPRM_mode[16];  /* Need to have some thing to indicate normal/counter mode for every GPRM */
+  struct timeval GPRM_time[16]; /* For counter mode */
+} registers_t;
+
+/* a VM command data set */
+typedef struct {
+  uint64_t instruction;
+  uint64_t examined;
+  registers_t *registers;
+} command_t;
+
+/* the big VM function, executing the given commands and writing
+ * the link where to continue, the return value indicates if a jump
+ * has been performed */
+int32_t vmEval_CMD(vm_cmd_t commands[], int32_t num_commands, 
+	       registers_t *registers, link_t *return_values);
+
+/* extracts some bits from the command */
+uint32_t vm_getbits(command_t* command, int32_t start, int32_t count);
+
+#ifdef TRACE
+/* for debugging: prints a link in readable form */
+void vm_print_link(link_t value);
+
+/* for debugging: dumps VM registers */
+void vm_print_registers( registers_t *registers );
+#endif
+
+#endif /* DECODER_H_INCLUDED */