Rename internal libdvdread fork from dvdread to libdvdread

to avoid clashing with external libdvdread.
(Sync with libdvdread r1122)


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27498 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 331 insertions, 0 deletions

diff --git a/libdvdread/nav_read.c b/libdvdread/nav_read.c
new file mode 100644
index 0000000000..9ba685bdca
--- /dev/null
+++ b/libdvdread/nav_read.c
@@ -0,0 +1,331 @@
+/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/*
+ * Copyright (C) 2000, 2001, 2002, 2003 Håkan Hjort <d95hjort@dtek.chalmers.se>
+ *
+ * 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
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+#if defined(HAVE_INTTYPES_H)
+#include <inttypes.h>
+#elif defined(HAVE_STDINT_H)
+#include <stdint.h>
+#endif
+
+#include "bswap.h"
+#include "nav_types.h"
+#include "nav_read.h"
+#include "dvdread_internal.h"
+
+typedef struct {
+  uint8_t *start;
+  uint32_t byte_position;
+  uint32_t bit_position;
+  uint8_t byte;
+} getbits_state_t;
+
+static int getbits_init(getbits_state_t *state, uint8_t *start) {
+  if ((state == NULL) || (start == NULL)) return 0;
+  state->start = start;
+  state->bit_position = 0;
+  state->byte_position = 0;
+  state->byte = start[0];
+  return 1;
+}
+
+/* Non-optimized getbits. */
+/* This can easily be optimized for particular platforms. */
+static uint32_t getbits(getbits_state_t *state, uint32_t number_of_bits) {
+  uint32_t result=0;
+  uint8_t byte=0;
+  if (number_of_bits > 32) {
+    printf("Number of bits > 32 in getbits\n");
+    abort();
+  }
+
+  if ((state->bit_position) > 0) {  /* Last getbits left us in the middle of a byte. */
+    if (number_of_bits > (8-state->bit_position)) { /* this getbits will span 2 or more bytes. */
+      byte = state->byte;
+      byte = byte >> (state->bit_position);
+      result = byte;
+      number_of_bits -= (8-state->bit_position);
+      state->bit_position = 0;
+      state->byte_position++;
+      state->byte = state->start[state->byte_position];
+    } else {
+      byte=state->byte;
+      state->byte = state->byte << number_of_bits;
+      byte = byte >> (8 - number_of_bits);
+      result = byte;
+      state->bit_position += number_of_bits; /* Here it is impossible for bit_position > 8 */
+      if (state->bit_position == 8) {
+        state->bit_position = 0;
+        state->byte_position++;
+        state->byte = state->start[state->byte_position];
+      }
+      number_of_bits = 0;
+    }
+  }
+  if ((state->bit_position) == 0) {
+    while (number_of_bits > 7) {
+      result = (result << 8) + state->byte;
+      state->byte_position++;
+      state->byte = state->start[state->byte_position];
+      number_of_bits -= 8;
+    }
+    if (number_of_bits > 0) { /* number_of_bits < 8 */
+      byte = state->byte;
+      state->byte = state->byte << number_of_bits;
+      state->bit_position += number_of_bits; /* Here it is impossible for bit_position > 7 */
+      byte = byte >> (8 - number_of_bits);
+      result = (result << number_of_bits) + byte;
+      number_of_bits = 0;
+    }
+  }
+
+  return result;
+}
+
+
+void navRead_PCI(pci_t *pci, unsigned char *buffer) {
+  int i, j;
+  getbits_state_t state;
+  if (!getbits_init(&state, buffer)) abort(); /* Passed NULL pointers */
+
+  /* pci pci_gi */
+  pci->pci_gi.nv_pck_lbn = getbits(&state, 32 );
+  pci->pci_gi.vobu_cat = getbits(&state, 16 );
+  pci->pci_gi.zero1 = getbits(&state, 16 );
+  pci->pci_gi.vobu_uop_ctl.zero = getbits(&state, 7 );
+  pci->pci_gi.vobu_uop_ctl.video_pres_mode_change         = getbits(&state, 1 );
+
+  pci->pci_gi.vobu_uop_ctl.karaoke_audio_pres_mode_change = getbits(&state, 1 ); 
+  pci->pci_gi.vobu_uop_ctl.angle_change                   = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.subpic_stream_change           = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.audio_stream_change            = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.pause_on                       = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.still_off                      = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.button_select_or_activate      = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.resume                         = getbits(&state, 1 );
+
+  pci->pci_gi.vobu_uop_ctl.chapter_menu_call              = getbits(&state, 1 ); 
+  pci->pci_gi.vobu_uop_ctl.angle_menu_call                = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.audio_menu_call                = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.subpic_menu_call               = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.root_menu_call                 = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.title_menu_call                = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.backward_scan                  = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.forward_scan                   = getbits(&state, 1 );
+
+  pci->pci_gi.vobu_uop_ctl.next_pg_search                 = getbits(&state, 1 ); 
+  pci->pci_gi.vobu_uop_ctl.prev_or_top_pg_search          = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.time_or_chapter_search         = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.go_up                          = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.stop                           = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.title_play                     = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.chapter_search_or_play         = getbits(&state, 1 );
+  pci->pci_gi.vobu_uop_ctl.title_or_time_play             = getbits(&state, 1 );
+  pci->pci_gi.vobu_s_ptm = getbits(&state, 32 ); 
+  pci->pci_gi.vobu_e_ptm = getbits(&state, 32 ); 
+  pci->pci_gi.vobu_se_e_ptm = getbits(&state, 32 ); 
+  pci->pci_gi.e_eltm.hour   = getbits(&state, 8 );
+  pci->pci_gi.e_eltm.minute = getbits(&state, 8 );
+  pci->pci_gi.e_eltm.second = getbits(&state, 8 );
+  pci->pci_gi.e_eltm.frame_u = getbits(&state, 8 );
+  for(i = 0; i < 32; i++)
+    pci->pci_gi.vobu_isrc[i] = getbits(&state, 8 );
+
+  /* pci nsml_agli */
+  for(i = 0; i < 9; i++)
+    pci->nsml_agli.nsml_agl_dsta[i] = getbits(&state, 32 );
+
+  /* pci hli hli_gi */
+  pci->hli.hl_gi.hli_ss = getbits(&state, 16 );
+  pci->hli.hl_gi.hli_s_ptm = getbits(&state, 32 ); 
+  pci->hli.hl_gi.hli_e_ptm = getbits(&state, 32 );
+  pci->hli.hl_gi.btn_se_e_ptm = getbits(&state, 32 );
+  pci->hli.hl_gi.zero1 = getbits(&state, 2 );
+  pci->hli.hl_gi.btngr_ns = getbits(&state, 2 );
+  pci->hli.hl_gi.zero2 = getbits(&state, 1 );
+  pci->hli.hl_gi.btngr1_dsp_ty = getbits(&state, 3 );
+  pci->hli.hl_gi.zero3 = getbits(&state, 1 );
+  pci->hli.hl_gi.btngr2_dsp_ty = getbits(&state, 3 );
+  pci->hli.hl_gi.zero4 = getbits(&state, 1 );
+  pci->hli.hl_gi.btngr3_dsp_ty = getbits(&state, 3 );
+  pci->hli.hl_gi.btn_ofn = getbits(&state, 8 );
+  pci->hli.hl_gi.btn_ns = getbits(&state, 8 );
+  pci->hli.hl_gi.nsl_btn_ns = getbits(&state, 8 ); 
+  pci->hli.hl_gi.zero5 = getbits(&state, 8 );
+  pci->hli.hl_gi.fosl_btnn = getbits(&state, 8 );
+  pci->hli.hl_gi.foac_btnn = getbits(&state, 8 );
+
+  /* pci hli btn_colit */
+  for(i = 0; i < 3; i++)
+    for(j = 0; j < 2; j++)
+      pci->hli.btn_colit.btn_coli[i][j] = getbits(&state, 32 ); 
+
+  /* pci hli btni */
+  for(i = 0; i < 36; i++) {
+    pci->hli.btnit[i].btn_coln = getbits(&state, 2 );
+    pci->hli.btnit[i].x_start = getbits(&state, 10 );
+    pci->hli.btnit[i].zero1 = getbits(&state, 2 );
+    pci->hli.btnit[i].x_end = getbits(&state, 10 );
+
+    pci->hli.btnit[i].auto_action_mode = getbits(&state, 2 );
+    pci->hli.btnit[i].y_start = getbits(&state, 10 );
+    pci->hli.btnit[i].zero2 = getbits(&state, 2 );
+    pci->hli.btnit[i].y_end = getbits(&state, 10 );
+
+    pci->hli.btnit[i].zero3 = getbits(&state, 2 );
+    pci->hli.btnit[i].up = getbits(&state, 6 );
+    pci->hli.btnit[i].zero4 = getbits(&state, 2 );
+    pci->hli.btnit[i].down = getbits(&state, 6 );
+    pci->hli.btnit[i].zero5 = getbits(&state, 2 );
+    pci->hli.btnit[i].left = getbits(&state, 6 );
+    pci->hli.btnit[i].zero6 = getbits(&state, 2 );
+    pci->hli.btnit[i].right = getbits(&state, 6 );
+    /* pci vm_cmd */
+    for(j = 0; j < 8; j++)
+      pci->hli.btnit[i].cmd.bytes[j] = getbits(&state, 8 );
+  }
+
+
+#ifndef NDEBUG
+  /* Asserts */
+
+  /* pci pci gi */ 
+  CHECK_VALUE(pci->pci_gi.zero1 == 0);
+
+  /* pci hli hli_gi */
+  CHECK_VALUE(pci->hli.hl_gi.zero1 == 0);
+  CHECK_VALUE(pci->hli.hl_gi.zero2 == 0);
+  CHECK_VALUE(pci->hli.hl_gi.zero3 == 0);
+  CHECK_VALUE(pci->hli.hl_gi.zero4 == 0);
+  CHECK_VALUE(pci->hli.hl_gi.zero5 == 0);
+
+  /* Are there buttons defined here? */
+  if((pci->hli.hl_gi.hli_ss & 0x03) != 0) {
+    CHECK_VALUE(pci->hli.hl_gi.btn_ns != 0); 
+    CHECK_VALUE(pci->hli.hl_gi.btngr_ns != 0); 
+  } else {
+    CHECK_VALUE((pci->hli.hl_gi.btn_ns != 0 && pci->hli.hl_gi.btngr_ns != 0) 
+                || (pci->hli.hl_gi.btn_ns == 0 && pci->hli.hl_gi.btngr_ns == 0));
+  }
+
+  /* pci hli btnit */
+  for(i = 0; i < pci->hli.hl_gi.btngr_ns; i++) {
+    for(j = 0; j < (36 / pci->hli.hl_gi.btngr_ns); j++) {
+      int n = (36 / pci->hli.hl_gi.btngr_ns) * i + j;
+      CHECK_VALUE(pci->hli.btnit[n].zero1 == 0);
+      CHECK_VALUE(pci->hli.btnit[n].zero2 == 0);
+      CHECK_VALUE(pci->hli.btnit[n].zero3 == 0);
+      CHECK_VALUE(pci->hli.btnit[n].zero4 == 0);
+      CHECK_VALUE(pci->hli.btnit[n].zero5 == 0);
+      CHECK_VALUE(pci->hli.btnit[n].zero6 == 0);
+      
+      if (j < pci->hli.hl_gi.btn_ns) {  
+        CHECK_VALUE(pci->hli.btnit[n].x_start <= pci->hli.btnit[n].x_end);
+        CHECK_VALUE(pci->hli.btnit[n].y_start <= pci->hli.btnit[n].y_end);
+        CHECK_VALUE(pci->hli.btnit[n].up <= pci->hli.hl_gi.btn_ns);
+        CHECK_VALUE(pci->hli.btnit[n].down <= pci->hli.hl_gi.btn_ns);
+        CHECK_VALUE(pci->hli.btnit[n].left <= pci->hli.hl_gi.btn_ns);
+        CHECK_VALUE(pci->hli.btnit[n].right <= pci->hli.hl_gi.btn_ns);
+        //vmcmd_verify(pci->hli.btnit[n].cmd);
+      } else {
+        int k;
+        CHECK_VALUE(pci->hli.btnit[n].btn_coln == 0);
+        CHECK_VALUE(pci->hli.btnit[n].auto_action_mode == 0);
+        CHECK_VALUE(pci->hli.btnit[n].x_start == 0);
+        CHECK_VALUE(pci->hli.btnit[n].y_start == 0);
+        CHECK_VALUE(pci->hli.btnit[n].x_end == 0);
+        CHECK_VALUE(pci->hli.btnit[n].y_end == 0);
+        CHECK_VALUE(pci->hli.btnit[n].up == 0);
+        CHECK_VALUE(pci->hli.btnit[n].down == 0);
+        CHECK_VALUE(pci->hli.btnit[n].left == 0);
+        CHECK_VALUE(pci->hli.btnit[n].right == 0);
+        for (k = 0; k < 8; k++)
+          CHECK_VALUE(pci->hli.btnit[n].cmd.bytes[k] == 0); //CHECK_ZERO?
+      }
+    }
+  }
+#endif /* !NDEBUG */
+}
+
+void navRead_DSI(dsi_t *dsi, unsigned char *buffer) {
+  int i;
+  getbits_state_t state;
+  if (!getbits_init(&state, buffer)) abort(); /* Passed NULL pointers */
+
+  /* dsi dsi gi */
+  dsi->dsi_gi.nv_pck_scr = getbits(&state, 32 );
+  dsi->dsi_gi.nv_pck_lbn = getbits(&state, 32 );
+  dsi->dsi_gi.vobu_ea = getbits(&state, 32 );
+  dsi->dsi_gi.vobu_1stref_ea = getbits(&state, 32 );
+  dsi->dsi_gi.vobu_2ndref_ea = getbits(&state, 32 );
+  dsi->dsi_gi.vobu_3rdref_ea = getbits(&state, 32 );
+  dsi->dsi_gi.vobu_vob_idn = getbits(&state, 16 );
+  dsi->dsi_gi.zero1 = getbits(&state, 8 );
+  dsi->dsi_gi.vobu_c_idn = getbits(&state, 8 );
+  dsi->dsi_gi.c_eltm.hour   = getbits(&state, 8 );
+  dsi->dsi_gi.c_eltm.minute = getbits(&state, 8 );
+  dsi->dsi_gi.c_eltm.second = getbits(&state, 8 );
+  dsi->dsi_gi.c_eltm.frame_u = getbits(&state, 8 );
+
+  /* dsi sml pbi */
+  dsi->sml_pbi.category = getbits(&state, 16 );
+  dsi->sml_pbi.ilvu_ea = getbits(&state, 32 );
+  dsi->sml_pbi.ilvu_sa = getbits(&state, 32 );
+  dsi->sml_pbi.size = getbits(&state, 16 );
+  dsi->sml_pbi.vob_v_s_s_ptm = getbits(&state, 32 );
+  dsi->sml_pbi.vob_v_e_e_ptm = getbits(&state, 32 );
+  for(i = 0; i < 8; i++) {
+    dsi->sml_pbi.vob_a[i].stp_ptm1 = getbits(&state, 32 );
+    dsi->sml_pbi.vob_a[i].stp_ptm2 = getbits(&state, 32 );
+    dsi->sml_pbi.vob_a[i].gap_len1 = getbits(&state, 32 );
+    dsi->sml_pbi.vob_a[i].gap_len2 = getbits(&state, 32 );
+  }
+
+  /* dsi sml agli */
+  for(i = 0; i < 9; i++) {
+    dsi->sml_agli.data[ i ].address = getbits(&state, 32 );
+    dsi->sml_agli.data[ i ].size = getbits(&state, 16 );
+  }
+
+  /* dsi vobu sri */
+  dsi->vobu_sri.next_video = getbits(&state, 32 );
+  for(i = 0; i < 19; i++)
+    dsi->vobu_sri.fwda[i] = getbits(&state, 32 );
+  dsi->vobu_sri.next_vobu = getbits(&state, 32 );
+  dsi->vobu_sri.prev_vobu = getbits(&state, 32 );
+  for(i = 0; i < 19; i++)
+    dsi->vobu_sri.bwda[i] = getbits(&state, 32 );
+  dsi->vobu_sri.prev_video = getbits(&state, 32 );
+
+  /* dsi synci */
+  for(i = 0; i < 8; i++)
+    dsi->synci.a_synca[i] = getbits(&state, 16 );
+  for(i = 0; i < 32; i++)
+    dsi->synci.sp_synca[i] = getbits(&state, 32 );
+
+  
+  /* Asserts */
+
+  /* dsi dsi gi */
+  CHECK_VALUE(dsi->dsi_gi.zero1 == 0);
+}
+