diff options
Diffstat (limited to 'libdvdread/nav_read.c')
| -rw-r--r-- | libdvdread/nav_read.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/libdvdread/nav_read.c b/libdvdread/nav_read.c new file mode 100644 index 0000000000..1a907f9dfe --- /dev/null +++ b/libdvdread/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); +} + |