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-rw-r--r--dvdread/nav_read.c204
1 files changed, 204 insertions, 0 deletions
diff --git a/dvdread/nav_read.c b/dvdread/nav_read.c
new file mode 100644
index 0000000000..1a907f9dfe
--- /dev/null
+++ b/dvdread/nav_read.c
@@ -0,0 +1,204 @@
+/*
+ * 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>
+#include <inttypes.h>
+
+#include "bswap.h"
+#include "nav_types.h"
+#include "nav_read.h"
+#include "dvdread_internal.h"
+
+void navRead_PCI(pci_t *pci, unsigned char *buffer) {
+ int i, j;
+
+ CHECK_VALUE(sizeof(pci_t) == PCI_BYTES - 1); // -1 for substream id
+
+ memcpy(pci, buffer, sizeof(pci_t));
+
+ /* Endian conversions */
+
+ /* pci pci_gi */
+ B2N_32(pci->pci_gi.nv_pck_lbn);
+ B2N_16(pci->pci_gi.vobu_cat);
+ B2N_32(pci->pci_gi.vobu_s_ptm);
+ B2N_32(pci->pci_gi.vobu_e_ptm);
+ B2N_32(pci->pci_gi.vobu_se_e_ptm);
+
+ /* pci nsml_agli */
+ for(i = 0; i < 9; i++)
+ B2N_32(pci->nsml_agli.nsml_agl_dsta[i]);
+
+ /* pci hli hli_gi */
+ B2N_16(pci->hli.hl_gi.hli_ss);
+ B2N_32(pci->hli.hl_gi.hli_s_ptm);
+ B2N_32(pci->hli.hl_gi.hli_e_ptm);
+ B2N_32(pci->hli.hl_gi.btn_se_e_ptm);
+
+ /* pci hli btn_colit */
+ for(i = 0; i < 3; i++)
+ for(j = 0; j < 2; j++)
+ B2N_32(pci->hli.btn_colit.btn_coli[i][j]);
+
+ /* NOTE: I've had to change the structure from the disk layout to get
+ * the packing to work with Sun's Forte C compiler. */
+
+ /* pci hli btni */
+ for(i = 0; i < 36; i++) {
+ char tmp[sizeof(pci->hli.btnit[i])], swap;
+ memcpy(tmp, &(pci->hli.btnit[i]), sizeof(pci->hli.btnit[i]));
+ /* Byte 4 to 7 are 'rotated' was: ABCD EFGH IJ is: ABCG DEFH IJ */
+ swap = tmp[6];
+ tmp[6] = tmp[5];
+ tmp[5] = tmp[4];
+ tmp[4] = tmp[3];
+ tmp[3] = swap;
+
+ /* Then there are the two B2N_24(..) calls */
+#ifndef WORDS_BIGENDIAN
+ swap = tmp[0];
+ tmp[0] = tmp[2];
+ tmp[2] = swap;
+
+ swap = tmp[4];
+ tmp[4] = tmp[6];
+ tmp[6] = swap;
+#endif
+ memcpy(&(pci->hli.btnit[i]), tmp, sizeof(pci->hli.btnit[i]));
+ }
+
+
+#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;
+
+ CHECK_VALUE(sizeof(dsi_t) == DSI_BYTES - 1); // -1 for substream id
+
+ memcpy(dsi, buffer, sizeof(dsi_t));
+
+ /* Endian conversions */
+
+ /* dsi dsi gi */
+ B2N_32(dsi->dsi_gi.nv_pck_scr);
+ B2N_32(dsi->dsi_gi.nv_pck_lbn);
+ B2N_32(dsi->dsi_gi.vobu_ea);
+ B2N_32(dsi->dsi_gi.vobu_1stref_ea);
+ B2N_32(dsi->dsi_gi.vobu_2ndref_ea);
+ B2N_32(dsi->dsi_gi.vobu_3rdref_ea);
+ B2N_16(dsi->dsi_gi.vobu_vob_idn);
+
+ /* dsi sml pbi */
+ B2N_16(dsi->sml_pbi.category);
+ B2N_32(dsi->sml_pbi.ilvu_ea);
+ B2N_32(dsi->sml_pbi.ilvu_sa);
+ B2N_16(dsi->sml_pbi.size);
+ B2N_32(dsi->sml_pbi.vob_v_s_s_ptm);
+ B2N_32(dsi->sml_pbi.vob_v_e_e_ptm);
+
+ /* dsi sml agli */
+ for(i = 0; i < 9; i++) {
+ B2N_32(dsi->sml_agli.data[ i ].address);
+ B2N_16(dsi->sml_agli.data[ i ].size);
+ }
+
+ /* dsi vobu sri */
+ B2N_32(dsi->vobu_sri.next_video);
+ for(i = 0; i < 19; i++)
+ B2N_32(dsi->vobu_sri.fwda[i]);
+ B2N_32(dsi->vobu_sri.next_vobu);
+ B2N_32(dsi->vobu_sri.prev_vobu);
+ for(i = 0; i < 19; i++)
+ B2N_32(dsi->vobu_sri.bwda[i]);
+ B2N_32(dsi->vobu_sri.prev_video);
+
+ /* dsi synci */
+ for(i = 0; i < 8; i++)
+ B2N_16(dsi->synci.a_synca[i]);
+ for(i = 0; i < 32; i++)
+ B2N_32(dsi->synci.sp_synca[i]);
+
+
+ /* Asserts */
+
+ /* dsi dsi gi */
+ CHECK_VALUE(dsi->dsi_gi.zero1 == 0);
+}
+