From 0d382a262c0638d0f572fc37193ccc5ed3dc895f Mon Sep 17 00:00:00 2001 From: tpearson Date: Wed, 17 Feb 2010 00:32:19 +0000 Subject: Added old abandoned version of k9copy git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/k9copy@1091546 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- libdvdnav/vm.c | 1861 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1861 insertions(+) create mode 100644 libdvdnav/vm.c (limited to 'libdvdnav/vm.c') diff --git a/libdvdnav/vm.c b/libdvdnav/vm.c new file mode 100644 index 0000000..dbebafa --- /dev/null +++ b/libdvdnav/vm.c @@ -0,0 +1,1861 @@ +/* + * Copyright (C) 2000, 2001 H�an Hjort + * Copyright (C) 2001 Rich Wareham + * 2002-2004 the dvdnav project + * + * 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: vm.c,v 1.32 2004/12/20 19:27:20 mroi Exp $ + * + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "dvdread.h" + +#include "dvdnav_internal.h" + +#ifdef _MSC_VER +#include /* read() */ +#endif /* _MSC_VER */ + +/* +#define STRICT +*/ + +/* Local prototypes */ + +/* get_XYZ returns a value. + * set_XYZ sets state using passed parameters. + * returns success/failure. + */ + +/* Play */ +static link_t play_PGC(vm_t *vm); +static link_t play_PGC_PG(vm_t *vm, int pgN); +static link_t play_PGC_post(vm_t *vm); +static link_t play_PG(vm_t *vm); +static link_t play_Cell(vm_t *vm); +static link_t play_Cell_post(vm_t *vm); + +/* Process link - returns 1 if a hop has been performed */ +static int process_command(vm_t *vm,link_t link_values); + +/* Set */ +static int set_TT(vm_t *vm, int tt); +static int set_PTT(vm_t *vm, int tt, int ptt); +static int set_VTS_TT(vm_t *vm, int vtsN, int vts_ttn); +static int set_VTS_PTT(vm_t *vm, int vtsN, int vts_ttn, int part); +static int set_FP_PGC(vm_t *vm); +static int set_MENU(vm_t *vm, int menu); +static int set_PGCN(vm_t *vm, int pgcN); +static int set_PGN(vm_t *vm); /* Set PGN based on (vm->state).CellN */ +static void set_RSMinfo(vm_t *vm, int cellN, int blockN); + +/* Get */ +static int get_TT(vm_t *vm, int vtsN, int vts_ttn); +static int get_ID(vm_t *vm, int id); +static int get_PGCN(vm_t *vm); + +static pgcit_t* get_MENU_PGCIT(vm_t *vm, ifo_handle_t *h, uint16_t lang); +static pgcit_t* get_PGCIT(vm_t *vm); + + +/* Helper functions */ + +#ifdef TRACE +static void vm_print_current_domain_state(vm_t *vm) { + switch((vm->state).domain) { + case VTS_DOMAIN: + fprintf(MSG_OUT, "libdvdnav: Video Title Domain: -\n"); + break; + + case VTSM_DOMAIN: + fprintf(MSG_OUT, "libdvdnav: Video Title Menu Domain: -\n"); + break; + + case VMGM_DOMAIN: + fprintf(MSG_OUT, "libdvdnav: Video Manager Menu Domain: -\n"); + break; + + case FP_DOMAIN: + fprintf(MSG_OUT, "libdvdnav: First Play Domain: -\n"); + break; + + default: + fprintf(MSG_OUT, "libdvdnav: Unknown Domain: -\n"); + break; + } + fprintf(MSG_OUT, "libdvdnav: VTS:%d PGC:%d PG:%u CELL:%u BLOCK:%u VTS_TTN:%u TTN:%u TT_PGCN:%u\n", + (vm->state).vtsN, + get_PGCN(vm), + (vm->state).pgN, + (vm->state).cellN, + (vm->state).blockN, + (vm->state).VTS_TTN_REG, + (vm->state).TTN_REG, + (vm->state).TT_PGCN_REG); +} +#endif + +static void dvd_read_name(char *name, const char *device) { + /* Because we are compiling with _FILE_OFFSET_BITS=64 + * all off_t are 64bit. + */ + off_t off; + int fd, i; + uint8_t data[DVD_VIDEO_LB_LEN]; + + /* Read DVD name */ + fd = open(device, O_RDONLY); + if (fd > 0) { + off = lseek( fd, 32 * (off_t) DVD_VIDEO_LB_LEN, SEEK_SET ); + if( off == ( 32 * (off_t) DVD_VIDEO_LB_LEN ) ) { + off = read( fd, data, DVD_VIDEO_LB_LEN ); + close(fd); + if (off == ( (off_t) DVD_VIDEO_LB_LEN )) { + fprintf(MSG_OUT, "libdvdnav: DVD Title: "); + for(i=25; i < 73; i++ ) { + if((data[i] == 0)) break; + if((data[i] > 32) && (data[i] < 127)) { + fprintf(MSG_OUT, "%c", data[i]); + } else { + fprintf(MSG_OUT, " "); + } + } + strncpy(name, &data[25], 48); + name[48] = 0; + fprintf(MSG_OUT, "\nlibdvdnav: DVD Serial Number: "); + for(i=73; i < 89; i++ ) { + if((data[i] == 0)) break; + if((data[i] > 32) && (data[i] < 127)) { + fprintf(MSG_OUT, "%c", data[i]); + } else { + fprintf(MSG_OUT, " "); + } + } + fprintf(MSG_OUT, "\nlibdvdnav: DVD Title (Alternative): "); + for(i=89; i < 128; i++ ) { + if((data[i] == 0)) break; + if((data[i] > 32) && (data[i] < 127)) { + fprintf(MSG_OUT, "%c", data[i]); + } else { + fprintf(MSG_OUT, " "); + } + } + fprintf(MSG_OUT, "\n"); + } else { + fprintf(MSG_OUT, "libdvdnav: Can't read name block. Probably not a DVD-ROM device.\n"); + } + } else { + fprintf(MSG_OUT, "libdvdnav: Can't seek to block %u\n", 32 ); + } + close(fd); + } else { + fprintf(MSG_OUT, "NAME OPEN FAILED\n"); + } +} + +static int ifoOpenNewVTSI(vm_t *vm, dvd_reader_t *dvd, int vtsN) { + if((vm->state).vtsN == vtsN) { + return 1; /* We alread have it */ + } + + if(vm->vtsi != NULL) + ifoClose(vm->vtsi); + + vm->vtsi = ifoOpenVTSI(dvd, vtsN); + if(vm->vtsi == NULL) { + fprintf(MSG_OUT, "libdvdnav: ifoOpenVTSI failed\n"); + return 0; + } + if(!ifoRead_VTS_PTT_SRPT(vm->vtsi)) { + fprintf(MSG_OUT, "libdvdnav: ifoRead_VTS_PTT_SRPT failed\n"); + return 0; + } + if(!ifoRead_PGCIT(vm->vtsi)) { + fprintf(MSG_OUT, "libdvdnav: ifoRead_PGCIT failed\n"); + return 0; + } + if(!ifoRead_PGCI_UT(vm->vtsi)) { + fprintf(MSG_OUT, "libdvdnav: ifoRead_PGCI_UT failed\n"); + return 0; + } + if(!ifoRead_VOBU_ADMAP(vm->vtsi)) { + fprintf(MSG_OUT, "libdvdnav: ifoRead_VOBU_ADMAP vtsi failed\n"); + return 0; + } + if(!ifoRead_TITLE_VOBU_ADMAP(vm->vtsi)) { + fprintf(MSG_OUT, "libdvdnav: ifoRead_TITLE_VOBU_ADMAP vtsi failed\n"); + return 0; + } + (vm->state).vtsN = vtsN; + + return 1; +} + + +/* Initialisation & Destruction */ + +vm_t* vm_new_vm() { + return (vm_t*)calloc(sizeof(vm_t), sizeof(char)); +} + +void vm_free_vm(vm_t *vm) { + vm_stop(vm); + free(vm); +} + + +/* IFO Access */ + +ifo_handle_t *vm_get_vmgi(vm_t *vm) { + return vm->vmgi; +} + +ifo_handle_t *vm_get_vtsi(vm_t *vm) { + return vm->vtsi; +} + + +/* Reader Access */ + +dvd_reader_t *vm_get_dvd_reader(vm_t *vm) { + return vm->dvd; +} + + +/* Basic Handling */ + +int vm_start(vm_t *vm) { + /* Set pgc to FP (First Play) pgc */ + set_FP_PGC(vm); + process_command(vm, play_PGC(vm)); + return !vm->stopped; +} + +void vm_stop(vm_t *vm) { + if(vm->vmgi) { + ifoClose(vm->vmgi); + vm->vmgi=NULL; + } + if(vm->vtsi) { + ifoClose(vm->vtsi); + vm->vtsi=NULL; + } + if(vm->dvd) { + if (!vm->openedDvd) + DVDClose(vm->dvd); + vm->dvd=NULL; + } + vm->stopped = 1; +} + +int vm_reset(vm_t *vm, const char *dvdroot) { + /* Setup State */ + memset((vm->state).registers.SPRM, 0, sizeof((vm->state).registers.SPRM)); + memset((vm->state).registers.GPRM, 0, sizeof((vm->state).registers.GPRM)); + memset((vm->state).registers.GPRM_mode, 0, sizeof((vm->state).registers.GPRM_mode)); + memset((vm->state).registers.GPRM_mode, 0, sizeof((vm->state).registers.GPRM_mode)); + memset((vm->state).registers.GPRM_time, 0, sizeof((vm->state).registers.GPRM_time)); + (vm->state).registers.SPRM[0] = ('e'<<8)|'n'; /* Player Menu Languange code */ + (vm->state).AST_REG = 15; /* 15 why? */ + (vm->state).SPST_REG = 62; /* 62 why? */ + (vm->state).AGL_REG = 1; + (vm->state).TTN_REG = 1; + (vm->state).VTS_TTN_REG = 1; + /* (vm->state).TT_PGCN_REG = 0 */ + (vm->state).PTTN_REG = 1; + (vm->state).HL_BTNN_REG = 1 << 10; + (vm->state).PTL_REG = 15; /* Parental Level */ + (vm->state).registers.SPRM[12] = ('U'<<8)|'S'; /* Parental Management Country Code */ + (vm->state).registers.SPRM[16] = ('e'<<8)|'n'; /* Initial Language Code for Audio */ + (vm->state).registers.SPRM[18] = ('e'<<8)|'n'; /* Initial Language Code for Spu */ + (vm->state).registers.SPRM[20] = 0x1; /* Player Regional Code Mask. Region free! */ + (vm->state).registers.SPRM[14] = 0x100; /* Try Pan&Scan */ + + (vm->state).pgN = 0; + (vm->state).cellN = 0; + (vm->state).cell_restart = 0; + + (vm->state).domain = FP_DOMAIN; + (vm->state).rsm_vtsN = 0; + (vm->state).rsm_cellN = 0; + (vm->state).rsm_blockN = 0; + + (vm->state).vtsN = -1; + + if (vm->dvd && dvdroot) { + /* a new dvd device has been requested */ + vm_stop(vm); + } + + if (!vm->dvd) { + if (vm->openedDvd) /*JMP we use the dvd opened by copy*/ + vm->dvd=vm->openedDvd; + else + vm->dvd = DVDOpen(dvdroot); + if(!vm->dvd) { + fprintf(MSG_OUT, "libdvdnav: vm: faild to open/read the DVD\n"); + return 0; + } + dvd_read_name(vm->dvd_name, dvdroot); + vm->map = remap_loadmap(vm->dvd_name); + vm->vmgi = ifoOpenVMGI(vm->dvd); + if(!vm->vmgi) { + fprintf(MSG_OUT, "libdvdnav: vm: faild to read VIDEO_TS.IFO\n"); + return 0; + } + if(!ifoRead_FP_PGC(vm->vmgi)) { + fprintf(MSG_OUT, "libdvdnav: vm: ifoRead_FP_PGC failed\n"); + return 0; + } + if(!ifoRead_TT_SRPT(vm->vmgi)) { + fprintf(MSG_OUT, "libdvdnav: vm: ifoRead_TT_SRPT failed\n"); + return 0; + } + if(!ifoRead_PGCI_UT(vm->vmgi)) { + fprintf(MSG_OUT, "libdvdnav: vm: ifoRead_PGCI_UT failed\n"); + return 0; + } + if(!ifoRead_PTL_MAIT(vm->vmgi)) { + fprintf(MSG_OUT, "libdvdnav: vm: ifoRead_PTL_MAIT failed\n"); + /* return 0; Not really used for now.. */ + } + if(!ifoRead_VTS_ATRT(vm->vmgi)) { + fprintf(MSG_OUT, "libdvdnav: vm: ifoRead_VTS_ATRT failed\n"); + /* return 0; Not really used for now.. */ + } + if(!ifoRead_VOBU_ADMAP(vm->vmgi)) { + fprintf(MSG_OUT, "libdvdnav: vm: ifoRead_VOBU_ADMAP vgmi failed\n"); + /* return 0; Not really used for now.. */ + } + /* ifoRead_TXTDT_MGI(vmgi); Not implemented yet */ + } + if (vm->vmgi) { + int i, mask; + fprintf(MSG_OUT, "libdvdnav: DVD disk reports itself with Region mask 0x%08x. Regions:", + vm->vmgi->vmgi_mat->vmg_category); + for (i = 1, mask = 1; i <= 8; i++, mask <<= 1) + if (((vm->vmgi->vmgi_mat->vmg_category >> 16) & mask) == 0) + fprintf(MSG_OUT, " %d", i); + fprintf(MSG_OUT, "\n"); + } + return 1; +} + + +/* copying and merging */ + +vm_t *vm_new_copy(vm_t *source) { + vm_t *target = vm_new_vm(); + int vtsN; + int pgcN = get_PGCN(source); + int pgN = (source->state).pgN; + + assert(pgcN); + + memcpy(target, source, sizeof(vm_t)); + + /* open a new vtsi handle, because the copy might switch to another VTS */ + target->vtsi = NULL; + vtsN = (target->state).vtsN; + if (vtsN > 0) { + (target->state).vtsN = 0; + if (!ifoOpenNewVTSI(target, target->dvd, vtsN)) + assert(0); + + /* restore pgc pointer into the new vtsi */ + if (!set_PGCN(target, pgcN)) + assert(0); + (target->state).pgN = pgN; + } + + return target; +} + +void vm_merge(vm_t *target, vm_t *source) { + if(target->vtsi) + ifoClose(target->vtsi); + memcpy(target, source, sizeof(vm_t)); + memset(source, 0, sizeof(vm_t)); +} + +void vm_free_copy(vm_t *vm) { + if(vm->vtsi) + ifoClose(vm->vtsi); + free(vm); +} + + +/* regular playback */ + +void vm_position_get(vm_t *vm, vm_position_t *position) { + position->button = (vm->state).HL_BTNN_REG >> 10; + position->vts = (vm->state).vtsN; + position->domain = (vm->state).domain; + position->spu_channel = (vm->state).SPST_REG; + position->audio_channel = (vm->state).AST_REG; + position->angle_channel = (vm->state).AGL_REG; + position->hop_channel = vm->hop_channel; /* Increases by one on each hop */ + position->cell = (vm->state).cellN; + position->cell_restart = (vm->state).cell_restart; + position->cell_start = (vm->state).pgc->cell_playback[(vm->state).cellN - 1].first_sector; + position->still = (vm->state).pgc->cell_playback[(vm->state).cellN - 1].still_time; + position->block = (vm->state).blockN; + + /* handle PGC stills at PGC end */ + if ((vm->state).cellN == (vm->state).pgc->nr_of_cells) + position->still += (vm->state).pgc->still_time; + /* still already determined */ + if (position->still) + return; + /* This is a rough fix for some strange still situations on some strange DVDs. + * There are discs (like the German "Back to the Future" RC2) where the only + * indication of a still is a cell playback time higher than the time the frames + * in this cell actually take to play (like 1 frame with 1 minute playback time). + * On the said BTTF disc, for these cells last_sector and last_vobu_start_sector + * are equal and the cells are very short, so we abuse these conditions to + * detect such discs. I consider these discs broken, so the fix is somewhat + * broken, too. */ + if (((vm->state).pgc->cell_playback[(vm->state).cellN - 1].last_sector == + (vm->state).pgc->cell_playback[(vm->state).cellN - 1].last_vobu_start_sector) && + ((vm->state).pgc->cell_playback[(vm->state).cellN - 1].last_sector - + (vm->state).pgc->cell_playback[(vm->state).cellN - 1].first_sector < 1024)) { + int time; + int size = (vm->state).pgc->cell_playback[(vm->state).cellN - 1].last_sector - + (vm->state).pgc->cell_playback[(vm->state).cellN - 1].first_sector; + time = ((vm->state).pgc->cell_playback[(vm->state).cellN - 1].playback_time.hour >> 4 ) * 36000; + time += ((vm->state).pgc->cell_playback[(vm->state).cellN - 1].playback_time.hour & 0x0f) * 3600; + time += ((vm->state).pgc->cell_playback[(vm->state).cellN - 1].playback_time.minute >> 4 ) * 600; + time += ((vm->state).pgc->cell_playback[(vm->state).cellN - 1].playback_time.minute & 0x0f) * 60; + time += ((vm->state).pgc->cell_playback[(vm->state).cellN - 1].playback_time.second >> 4 ) * 10; + time += ((vm->state).pgc->cell_playback[(vm->state).cellN - 1].playback_time.second & 0x0f) * 1; + if (!time || size / time > 30) + /* datarate is too high, it might be a very short, but regular cell */ + return; + if (time > 0xff) time = 0xff; + position->still = time; + } +} + +void vm_get_next_cell(vm_t *vm) { + process_command(vm, play_Cell_post(vm)); +} + + +/* Jumping */ + +int vm_jump_pg(vm_t *vm, int pg) { + (vm->state).pgN = pg; + process_command(vm, play_PG(vm)); + return 1; +} + +int vm_jump_cell_block(vm_t *vm, int cell, int block) { + (vm->state).cellN = cell; + process_command(vm, play_Cell(vm)); + /* play_Cell can jump to a different cell in case of angles */ + if ((vm->state).cellN == cell) + (vm->state).blockN = block; + return 1; +} + +int vm_jump_title_part(vm_t *vm, int title, int part) { + link_t link; + + if(!set_PTT(vm, title, part)) + return 0; + /* Some DVDs do not want us to jump directly into a title and have + * PGC pre commands taking us back to some menu. Since we do not like that, + * we do not execute PGC pre commands that would do a jump. */ + /* process_command(vm, play_PGC_PG(vm, (vm->state).pgN)); */ + link = play_PGC_PG(vm, (vm->state).pgN); + if (link.command != PlayThis) + /* jump occured -> ignore it and play the PG anyway */ + process_command(vm, play_PG(vm)); + else + process_command(vm, link); + return 1; +} + +int vm_jump_top_pg(vm_t *vm) { + process_command(vm, play_PG(vm)); + return 1; +} + +int vm_jump_next_pg(vm_t *vm) { + if((vm->state).pgN >= (vm->state).pgc->nr_of_programs) { + /* last program -> move to TailPGC */ + process_command(vm, play_PGC_post(vm)); + return 1; + } else { + vm_jump_pg(vm, (vm->state).pgN + 1); + return 1; + } +} + +int vm_jump_prev_pg(vm_t *vm) { + if ((vm->state).pgN <= 1) { + /* first program -> move to last program of previous PGC */ + if ((vm->state).pgc->prev_pgc_nr && set_PGCN(vm, (vm->state).pgc->prev_pgc_nr)) { + process_command(vm, play_PGC(vm)); + vm_jump_pg(vm, (vm->state).pgc->nr_of_programs); + return 1; + } + return 0; + } else { + vm_jump_pg(vm, (vm->state).pgN - 1); + return 1; + } +} + +int vm_jump_up(vm_t *vm) { + if((vm->state).pgc->goup_pgc_nr && set_PGCN(vm, (vm->state).pgc->goup_pgc_nr)) { + process_command(vm, play_PGC(vm)); + return 1; + } + return 0; +} + +int vm_jump_menu(vm_t *vm, DVDMenuID_t menuid) { + domain_t old_domain = (vm->state).domain; + + switch ((vm->state).domain) { + case VTS_DOMAIN: + set_RSMinfo(vm, 0, (vm->state).blockN); + /* FALL THROUGH */ + case VTSM_DOMAIN: + case VMGM_DOMAIN: + switch(menuid) { + case DVD_MENU_Title: + case DVD_MENU_Escape: + (vm->state).domain = VMGM_DOMAIN; + break; + case DVD_MENU_Root: + case DVD_MENU_Subpicture: + case DVD_MENU_Audio: + case DVD_MENU_Angle: + case DVD_MENU_Part: + (vm->state).domain = VTSM_DOMAIN; + break; + } + if(get_PGCIT(vm) && set_MENU(vm, menuid)) { + process_command(vm, play_PGC(vm)); + return 1; /* Jump */ + } else { + (vm->state).domain = old_domain; + } + break; + case FP_DOMAIN: /* FIXME XXX $$$ What should we do here? */ + break; + } + + return 0; +} + +int vm_jump_resume(vm_t *vm) { + link_t link_values = { LinkRSM, 0, 0, 0 }; + + if (!(vm->state).rsm_vtsN) /* Do we have resume info? */ + return 0; + if (!process_command(vm, link_values)) + return 0; + return 1; +} + +int vm_exec_cmd(vm_t *vm, vm_cmd_t *cmd) { + link_t link_values; + + if(vmEval_CMD(cmd, 1, &(vm->state).registers, &link_values)) + return process_command(vm, link_values); + else + return 0; /* It updated some state thats all... */ +} + + +/* getting information */ + +int vm_get_current_menu(vm_t *vm, int *menuid) { + pgcit_t* pgcit; + int pgcn; + pgcn = (vm->state).pgcN; + pgcit = get_PGCIT(vm); + *menuid = pgcit->pgci_srp[pgcn - 1].entry_id & 0xf ; + return 1; +} + +int vm_get_current_title_part(vm_t *vm, int *title_result, int *part_result) { + vts_ptt_srpt_t *vts_ptt_srpt; + int title, part = 0, vts_ttn; + int found; + int16_t pgcN, pgN; + + vts_ptt_srpt = vm->vtsi->vts_ptt_srpt; + pgcN = get_PGCN(vm); + pgN = vm->state.pgN; + + found = 0; + for (vts_ttn = 0; (vts_ttn < vts_ptt_srpt->nr_of_srpts) && !found; vts_ttn++) { + for (part = 0; (part < vts_ptt_srpt->title[vts_ttn].nr_of_ptts) && !found; part++) { + if (vts_ptt_srpt->title[vts_ttn].ptt[part].pgcn == pgcN) { + if (vts_ptt_srpt->title[vts_ttn].ptt[part].pgn == pgN) { + found = 1; + break; + } + if (part > 0 && vts_ptt_srpt->title[vts_ttn].ptt[part].pgn > pgN && + vts_ptt_srpt->title[vts_ttn].ptt[part - 1].pgn < pgN) { + part--; + found = 1; + break; + } + } + } + if (found) break; + } + vts_ttn++; + part++; + + if (!found) { + fprintf(MSG_OUT, "libdvdnav: chapter NOT FOUND!\n"); + return 0; + } + + title = get_TT(vm, vm->state.vtsN, vts_ttn); + +#ifdef TRACE + if (title) { + fprintf(MSG_OUT, "libdvdnav: ************ this chapter FOUND!\n"); + fprintf(MSG_OUT, "libdvdnav: VTS_PTT_SRPT - Title %3i part %3i: PGC: %3i PG: %3i\n", + title, part, + vts_ptt_srpt->title[vts_ttn-1].ptt[part-1].pgcn , + vts_ptt_srpt->title[vts_ttn-1].ptt[part-1].pgn ); + } +#endif + *title_result = title; + *part_result = part; + return 1; +} + +/* Return the substream id for 'logical' audio stream audioN. + * 0 <= audioN < 8 + */ +int vm_get_audio_stream(vm_t *vm, int audioN) { + int streamN = -1; + + if((vm->state).domain != VTS_DOMAIN) + audioN = 0; + + if(audioN < 8) { + /* Is there any control info for this logical stream */ + if((vm->state).pgc->audio_control[audioN] & (1<<15)) { + streamN = ((vm->state).pgc->audio_control[audioN] >> 8) & 0x07; + } + } + + if((vm->state).domain != VTS_DOMAIN && streamN == -1) + streamN = 0; + + /* FIXME: Should also check in vtsi/vmgi status what kind of stream + * it is (ac3/lpcm/dts/sdds...) to find the right (sub)stream id */ + return streamN; +} + +/* Return the substream id for 'logical' subpicture stream subpN and given mode. + * 0 <= subpN < 32 + * mode == 0 - widescreen + * mode == 1 - letterbox + * mode == 2 - pan&scan + */ +int vm_get_subp_stream(vm_t *vm, int subpN, int mode) { + int streamN = -1; + int source_aspect = vm_get_video_aspect(vm); + + if((vm->state).domain != VTS_DOMAIN) + subpN = 0; + + if(subpN < 32) { /* a valid logical stream */ + /* Is this logical stream present */ + if((vm->state).pgc->subp_control[subpN] & (1<<31)) { + if(source_aspect == 0) /* 4:3 */ + streamN = ((vm->state).pgc->subp_control[subpN] >> 24) & 0x1f; + if(source_aspect == 3) /* 16:9 */ + switch (mode) { + case 0: + streamN = ((vm->state).pgc->subp_control[subpN] >> 16) & 0x1f; + break; + case 1: + streamN = ((vm->state).pgc->subp_control[subpN] >> 8) & 0x1f; + break; + case 2: + streamN = (vm->state).pgc->subp_control[subpN] & 0x1f; + } + } + } + + if((vm->state).domain != VTS_DOMAIN && streamN == -1) + streamN = 0; + + /* FIXME: Should also check in vtsi/vmgi status what kind of stream it is. */ + return streamN; +} + +int vm_get_audio_active_stream(vm_t *vm) { + int audioN; + int streamN; + audioN = (vm->state).AST_REG ; + streamN = vm_get_audio_stream(vm, audioN); + + /* If no such stream, then select the first one that exists. */ + if(streamN == -1) { + for(audioN = 0; audioN < 8; audioN++) { + if((vm->state).pgc->audio_control[audioN] & (1<<15)) { + if ((streamN = vm_get_audio_stream(vm, audioN)) >= 0) + break; + } + } + } + + return streamN; +} + +int vm_get_subp_active_stream(vm_t *vm, int mode) { + int subpN; + int streamN; + subpN = (vm->state).SPST_REG & ~0x40; + streamN = vm_get_subp_stream(vm, subpN, mode); + + /* If no such stream, then select the first one that exists. */ + if(streamN == -1) { + for(subpN = 0; subpN < 32; subpN++) { + if((vm->state).pgc->subp_control[subpN] & (1<<31)) { + if ((streamN = vm_get_subp_stream(vm, subpN, mode)) >= 0) + break; + } + } + } + + if((vm->state).domain == VTS_DOMAIN && !((vm->state).SPST_REG & 0x40)) + /* Bit 7 set means hide, and only let Forced display show */ + return (streamN | 0x80); + else + return streamN; +} + +void vm_get_angle_info(vm_t *vm, int *current, int *num_avail) { + *num_avail = 1; + *current = 1; + + if((vm->state).domain == VTS_DOMAIN) { + title_info_t *title; + /* TTN_REG does not allways point to the correct title.. */ + if((vm->state).TTN_REG > vm->vmgi->tt_srpt->nr_of_srpts) + return; + title = &vm->vmgi->tt_srpt->title[(vm->state).TTN_REG - 1]; + if(title->title_set_nr != (vm->state).vtsN || + title->vts_ttn != (vm->state).VTS_TTN_REG) + return; + *num_avail = title->nr_of_angles; + *current = (vm->state).AGL_REG; + } +} + +#if 0 +/* currently unused */ +void vm_get_audio_info(vm_t *vm, int *current, int *num_avail) { + switch ((vm->state).domain) { + case VTS_DOMAIN: + *num_avail = vm->vtsi->vtsi_mat->nr_of_vts_audio_streams; + *current = (vm->state).AST_REG; + break; + case VTSM_DOMAIN: + *num_avail = vm->vtsi->vtsi_mat->nr_of_vtsm_audio_streams; /* 1 */ + *current = 1; + break; + case VMGM_DOMAIN: + case FP_DOMAIN: + *num_avail = vm->vmgi->vmgi_mat->nr_of_vmgm_audio_streams; /* 1 */ + *current = 1; + break; + } +} + +/* currently unused */ +void vm_get_subp_info(vm_t *vm, int *current, int *num_avail) { + switch ((vm->state).domain) { + case VTS_DOMAIN: + *num_avail = vm->vtsi->vtsi_mat->nr_of_vts_subp_streams; + *current = (vm->state).SPST_REG; + break; + case VTSM_DOMAIN: + *num_avail = vm->vtsi->vtsi_mat->nr_of_vtsm_subp_streams; /* 1 */ + *current = 0x41; + break; + case VMGM_DOMAIN: + case FP_DOMAIN: + *num_avail = vm->vmgi->vmgi_mat->nr_of_vmgm_subp_streams; /* 1 */ + *current = 0x41; + break; + } +} + +/* currently unused */ +void vm_get_video_res(vm_t *vm, int *width, int *height) { + video_attr_t attr = vm_get_video_attr(vm); + + if(attr.video_format != 0) + *height = 576; + else + *height = 480; + switch(attr.picture_size) { + case 0: + *width = 720; + break; + case 1: + *width = 704; + break; + case 2: + *width = 352; + break; + case 3: + *width = 352; + *height /= 2; + break; + } +} +#endif + +int vm_get_video_aspect(vm_t *vm) { + int aspect = vm_get_video_attr(vm).display_aspect_ratio; + + assert(aspect == 0 || aspect == 3); + (vm->state).registers.SPRM[14] &= ~(0x3 << 10); + (vm->state).registers.SPRM[14] |= aspect << 10; + + return aspect; +} + +int vm_get_video_scale_permission(vm_t *vm) { + return vm_get_video_attr(vm).permitted_df; +} + +video_attr_t vm_get_video_attr(vm_t *vm) { + switch ((vm->state).domain) { + case VTS_DOMAIN: + return vm->vtsi->vtsi_mat->vts_video_attr; + case VTSM_DOMAIN: + return vm->vtsi->vtsi_mat->vtsm_video_attr; + case VMGM_DOMAIN: + case FP_DOMAIN: + return vm->vmgi->vmgi_mat->vmgm_video_attr; + default: + abort(); + } +} + +audio_attr_t vm_get_audio_attr(vm_t *vm, int streamN) { + switch ((vm->state).domain) { + case VTS_DOMAIN: + return vm->vtsi->vtsi_mat->vts_audio_attr[streamN]; + case VTSM_DOMAIN: + return vm->vtsi->vtsi_mat->vtsm_audio_attr; + case VMGM_DOMAIN: + case FP_DOMAIN: + return vm->vmgi->vmgi_mat->vmgm_audio_attr; + default: + abort(); + } +} + +subp_attr_t vm_get_subp_attr(vm_t *vm, int streamN) { + switch ((vm->state).domain) { + case VTS_DOMAIN: + return vm->vtsi->vtsi_mat->vts_subp_attr[streamN]; + case VTSM_DOMAIN: + return vm->vtsi->vtsi_mat->vtsm_subp_attr; + case VMGM_DOMAIN: + case FP_DOMAIN: + return vm->vmgi->vmgi_mat->vmgm_subp_attr; + default: + abort(); + } +} + + +/* Playback control */ + +static link_t play_PGC(vm_t *vm) { + link_t link_values; + +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: play_PGC:"); + if((vm->state).domain != FP_DOMAIN) { + fprintf(MSG_OUT, " (vm->state).pgcN (%i)\n", get_PGCN(vm)); + } else { + fprintf(MSG_OUT, " first_play_pgc\n"); + } +#endif + + /* This must be set before the pre-commands are executed because they + * might contain a CallSS that will save resume state */ + + /* FIXME: This may be only a temporary fix for something... */ + (vm->state).pgN = 1; + (vm->state).cellN = 0; + (vm->state).blockN = 0; + + /* eval -> updates the state and returns either + - some kind of jump (Jump(TT/SS/VTS_TTN/CallSS/link C/PG/PGC/PTTN) + - just play video i.e first PG + (This is what happens if you fall of the end of the pre_cmds) + - or an error (are there more cases?) */ + if((vm->state).pgc->command_tbl && (vm->state).pgc->command_tbl->nr_of_pre) { + if(vmEval_CMD((vm->state).pgc->command_tbl->pre_cmds, + (vm->state).pgc->command_tbl->nr_of_pre, + &(vm->state).registers, &link_values)) { + /* link_values contains the 'jump' return value */ + return link_values; + } else { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: PGC pre commands didn't do a Jump, Link or Call\n"); +#endif + } + } + return play_PG(vm); +} + +static link_t play_PGC_PG(vm_t *vm, int pgN) { + link_t link_values; + +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: play_PGC_PG:"); + if((vm->state).domain != FP_DOMAIN) { + fprintf(MSG_OUT, " (vm->state).pgcN (%i)\n", get_PGCN(vm)); + } else { + fprintf(MSG_OUT, " first_play_pgc\n"); + } +#endif + + /* This must be set before the pre-commands are executed because they + * might contain a CallSS that will save resume state */ + + /* FIXME: This may be only a temporary fix for something... */ + (vm->state).pgN = pgN; + (vm->state).cellN = 0; + (vm->state).blockN = 0; + + /* eval -> updates the state and returns either + - some kind of jump (Jump(TT/SS/VTS_TTN/CallSS/link C/PG/PGC/PTTN) + - just play video i.e first PG + (This is what happens if you fall of the end of the pre_cmds) + - or an error (are there more cases?) */ + if((vm->state).pgc->command_tbl && (vm->state).pgc->command_tbl->nr_of_pre) { + if(vmEval_CMD((vm->state).pgc->command_tbl->pre_cmds, + (vm->state).pgc->command_tbl->nr_of_pre, + &(vm->state).registers, &link_values)) { + /* link_values contains the 'jump' return value */ + return link_values; + } else { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: PGC pre commands didn't do a Jump, Link or Call\n"); +#endif + } + } + return play_PG(vm); +} + +static link_t play_PGC_post(vm_t *vm) { + link_t link_values; + +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: play_PGC_post:\n"); +#endif + + /* eval -> updates the state and returns either + - some kind of jump (Jump(TT/SS/VTS_TTN/CallSS/link C/PG/PGC/PTTN) + - just go to next PGC + (This is what happens if you fall of the end of the post_cmds) + - or an error (are there more cases?) */ + if((vm->state).pgc->command_tbl && (vm->state).pgc->command_tbl->nr_of_post && + vmEval_CMD((vm->state).pgc->command_tbl->post_cmds, + (vm->state).pgc->command_tbl->nr_of_post, + &(vm->state).registers, &link_values)) { + return link_values; + } + +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: ** Fell of the end of the pgc, continuing in NextPGC\n"); +#endif + /* Should end up in the STOP_DOMAIN if next_pgc is 0. */ + if(!set_PGCN(vm, (vm->state).pgc->next_pgc_nr)) { + link_values.command = Exit; + return link_values; + } + return play_PGC(vm); +} + +static link_t play_PG(vm_t *vm) { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: play_PG: (vm->state).pgN (%i)\n", (vm->state).pgN); +#endif + + assert((vm->state).pgN > 0); + if((vm->state).pgN > (vm->state).pgc->nr_of_programs) { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: play_PG: (vm->state).pgN (%i) > pgc->nr_of_programs (%i)\n", + (vm->state).pgN, (vm->state).pgc->nr_of_programs ); +#endif + assert((vm->state).pgN == (vm->state).pgc->nr_of_programs + 1); + return play_PGC_post(vm); + } + + (vm->state).cellN = (vm->state).pgc->program_map[(vm->state).pgN - 1]; + + return play_Cell(vm); +} + +static link_t play_Cell(vm_t *vm) { + static const link_t play_this = {PlayThis, /* Block in Cell */ 0, 0, 0}; + +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: play_Cell: (vm->state).cellN (%i)\n", (vm->state).cellN); +#endif + + assert((vm->state).cellN > 0); + if((vm->state).cellN > (vm->state).pgc->nr_of_cells) { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: (vm->state).cellN (%i) > pgc->nr_of_cells (%i)\n", + (vm->state).cellN, (vm->state).pgc->nr_of_cells ); +#endif + assert((vm->state).cellN == (vm->state).pgc->nr_of_cells + 1); + return play_PGC_post(vm); + } + + /* Multi angle/Interleaved */ + switch((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_mode) { + case 0: /* Normal */ + assert((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_type == 0); + break; + case 1: /* The first cell in the block */ + switch((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_type) { + case 0: /* Not part of a block */ + assert(0); + break; + case 1: /* Angle block */ + /* Loop and check each cell instead? So we don't get outside the block? */ + (vm->state).cellN += (vm->state).AGL_REG - 1; +#ifdef STRICT + assert((vm->state).cellN <= (vm->state).pgc->nr_of_cells); + assert((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_mode != 0); + assert((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_type == 1); +#else + if (!((vm->state).cellN <= (vm->state).pgc->nr_of_cells) || + !((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_mode != 0) || + !((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_type == 1)) { + fprintf(MSG_OUT, "libdvdnav: Invalid angle block\n"); + (vm->state).cellN -= (vm->state).AGL_REG - 1; + } +#endif + break; + case 2: /* ?? */ + case 3: /* ?? */ + default: + fprintf(MSG_OUT, "libdvdnav: Invalid? Cell block_mode (%d), block_type (%d)\n", + (vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_mode, + (vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_type); + assert(0); + } + break; + case 2: /* Cell in the block */ + case 3: /* Last cell in the block */ + /* These might perhaps happen for RSM or LinkC commands? */ + default: + fprintf(MSG_OUT, "libdvdnav: Cell is in block but did not enter at first cell!\n"); + } + + /* Updates (vm->state).pgN and PTTN_REG */ + if(!set_PGN(vm)) { + /* Should not happen */ + assert(0); + return play_PGC_post(vm); + } + (vm->state).cell_restart++; + (vm->state).blockN = 0; +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: Cell should restart here\n"); +#endif + return play_this; +} + +static link_t play_Cell_post(vm_t *vm) { + cell_playback_t *cell; + +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: play_Cell_post: (vm->state).cellN (%i)\n", (vm->state).cellN); +#endif + + cell = &(vm->state).pgc->cell_playback[(vm->state).cellN - 1]; + + /* Still time is already taken care of before we get called. */ + + /* Deal with a Cell command, if any */ + if(cell->cell_cmd_nr != 0) { + link_t link_values; + +/* These asserts are now not needed. + * Some DVDs have no cell commands listed in the PGC, + * but the Cell itself points to a cell command that does not exist. + * For this situation, just ignore the cell command and continue. + * + * assert((vm->state).pgc->command_tbl != NULL); + * assert((vm->state).pgc->command_tbl->nr_of_cell >= cell->cell_cmd_nr); + */ + + if ((vm->state).pgc->command_tbl != NULL && + (vm->state).pgc->command_tbl->nr_of_cell >= cell->cell_cmd_nr) { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: Cell command present, executing\n"); +#endif + if(vmEval_CMD(&(vm->state).pgc->command_tbl->cell_cmds[cell->cell_cmd_nr - 1], 1, + &(vm->state).registers, &link_values)) { + return link_values; + } else { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: Cell command didn't do a Jump, Link or Call\n"); +#endif + } + } else { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: Invalid Cell command\n"); +#endif + } + } + + /* Where to continue after playing the cell... */ + /* Multi angle/Interleaved */ + switch((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_mode) { + case 0: /* Normal */ + assert((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_type == 0); + (vm->state).cellN++; + break; + case 1: /* The first cell in the block */ + case 2: /* A cell in the block */ + case 3: /* The last cell in the block */ + default: + switch((vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_type) { + case 0: /* Not part of a block */ + assert(0); + break; + case 1: /* Angle block */ + /* Skip the 'other' angles */ + (vm->state).cellN++; + while((vm->state).cellN <= (vm->state).pgc->nr_of_cells && + (vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_mode >= 2) { + (vm->state).cellN++; + } + break; + case 2: /* ?? */ + case 3: /* ?? */ + default: + fprintf(MSG_OUT, "libdvdnav: Invalid? Cell block_mode (%d), block_type (%d)\n", + (vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_mode, + (vm->state).pgc->cell_playback[(vm->state).cellN - 1].block_type); + assert(0); + } + break; + } + + /* Figure out the correct pgN for the new cell */ + if(!set_PGN(vm)) { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: last cell in this PGC\n"); +#endif + return play_PGC_post(vm); + } + return play_Cell(vm); +} + + +/* link processing */ + +static int process_command(vm_t *vm, link_t link_values) { + + while(link_values.command != PlayThis) { + +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: Before printout starts:\n"); + vm_print_link(link_values); + fprintf(MSG_OUT, "libdvdnav: Link values %i %i %i %i\n", link_values.command, + link_values.data1, link_values.data2, link_values.data3); + vm_print_current_domain_state(vm); + fprintf(MSG_OUT, "libdvdnav: Before printout ends.\n"); +#endif + + switch(link_values.command) { + case LinkNoLink: + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + return 0; /* no actual jump */ + + case LinkTopC: + /* Restart playing from the beginning of the current Cell. */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + link_values = play_Cell(vm); + break; + case LinkNextC: + /* Link to Next Cell */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + (vm->state).cellN += 1; + link_values = play_Cell(vm); + break; + case LinkPrevC: + /* Link to Previous Cell */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + assert((vm->state).cellN > 1); + (vm->state).cellN -= 1; + link_values = play_Cell(vm); + break; + + case LinkTopPG: + /* Link to Top of current Program */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + link_values = play_PG(vm); + break; + case LinkNextPG: + /* Link to Next Program */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + (vm->state).pgN += 1; + link_values = play_PG(vm); + break; + case LinkPrevPG: + /* Link to Previous Program */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + assert((vm->state).pgN > 1); + (vm->state).pgN -= 1; + link_values = play_PG(vm); + break; + + case LinkTopPGC: + /* Restart playing from beginning of current Program Chain */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + link_values = play_PGC(vm); + break; + case LinkNextPGC: + /* Link to Next Program Chain */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + assert((vm->state).pgc->next_pgc_nr != 0); + if(set_PGCN(vm, (vm->state).pgc->next_pgc_nr)) + link_values = play_PGC(vm); + else + link_values.command = Exit; + break; + case LinkPrevPGC: + /* Link to Previous Program Chain */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + assert((vm->state).pgc->prev_pgc_nr != 0); + if(set_PGCN(vm, (vm->state).pgc->prev_pgc_nr)) + link_values = play_PGC(vm); + else + link_values.command = Exit; + break; + case LinkGoUpPGC: + /* Link to GoUp Program Chain */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + assert((vm->state).pgc->goup_pgc_nr != 0); + if(set_PGCN(vm, (vm->state).pgc->goup_pgc_nr)) + link_values = play_PGC(vm); + else + link_values.command = Exit; + break; + case LinkTailPGC: + /* Link to Tail of Program Chain */ + /* BUTTON number:data1 */ + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + link_values = play_PGC_post(vm); + break; + + case LinkRSM: + { + /* Link to Resume point */ + int i; + + /* Check and see if there is any rsm info!! */ + if (!(vm->state).rsm_vtsN) { + fprintf(MSG_OUT, "libdvdnav: trying to resume without any resume info set\n"); + link_values.command = Exit; + break; + } + + (vm->state).domain = VTS_DOMAIN; + if (!ifoOpenNewVTSI(vm, vm->dvd, (vm->state).rsm_vtsN)) + assert(0); + set_PGCN(vm, (vm->state).rsm_pgcN); + + /* These should never be set in SystemSpace and/or MenuSpace */ + /* (vm->state).TTN_REG = rsm_tt; ?? */ + /* (vm->state).TT_PGCN_REG = (vm->state).rsm_pgcN; ?? */ + for(i = 0; i < 5; i++) { + (vm->state).registers.SPRM[4 + i] = (vm->state).rsm_regs[i]; + } + + if(link_values.data1 != 0) + (vm->state).HL_BTNN_REG = link_values.data1 << 10; + + if((vm->state).rsm_cellN == 0) { + assert((vm->state).cellN); /* Checking if this ever happens */ + (vm->state).pgN = 1; + link_values = play_PG(vm); + } else { + /* (vm->state).pgN = ?? this gets the right value in set_PGN() below */ + (vm->state).cellN = (vm->state).rsm_cellN; + link_values.command = PlayThis; + link_values.data1 = (vm->state).rsm_blockN & 0xffff; + link_values.data2 = (vm->state).rsm_blockN >> 16; + if(!set_PGN(vm)) { + /* Were at the end of the PGC, should not happen for a RSM */ + assert(0); + link_values.command = LinkTailPGC; + link_values.data1 = 0; /* No button */ + } + } + } + break; + case LinkPGCN: + /* Link to Program Chain Number:data1 */ + if(!set_PGCN(vm, link_values.data1)) + assert(0); + link_values = play_PGC(vm); + break; + case LinkPTTN: + /* Link to Part of current Title Number:data1 */ + /* BUTTON number:data2 */ + /* PGC Pre-Commands are not executed */ + assert((vm->state).domain == VTS_DOMAIN); + if(link_values.data2 != 0) + (vm->state).HL_BTNN_REG = link_values.data2 << 10; + if(!set_VTS_PTT(vm, (vm->state).vtsN, (vm->state).VTS_TTN_REG, link_values.data1)) + assert(0); + link_values = play_PG(vm); + break; + case LinkPGN: + /* Link to Program Number:data1 */ + /* BUTTON number:data2 */ + if(link_values.data2 != 0) + (vm->state).HL_BTNN_REG = link_values.data2 << 10; + /* Update any other state, PTTN perhaps? */ + (vm->state).pgN = link_values.data1; + link_values = play_PG(vm); + break; + case LinkCN: + /* Link to Cell Number:data1 */ + /* BUTTON number:data2 */ + if(link_values.data2 != 0) + (vm->state).HL_BTNN_REG = link_values.data2 << 10; + /* Update any other state, pgN, PTTN perhaps? */ + (vm->state).cellN = link_values.data1; + link_values = play_Cell(vm); + break; + + case Exit: + vm->stopped = 1; + return 0; + + case JumpTT: + /* Jump to VTS Title Domain */ + /* Only allowed from the First Play domain(PGC) */ + /* or the Video Manager domain (VMG) */ + /* Stop SPRM9 Timer */ + /* Set SPRM1 and SPRM2 */ + assert((vm->state).domain == VMGM_DOMAIN || (vm->state).domain == FP_DOMAIN); /* ?? */ + if(set_TT(vm, link_values.data1)) + link_values = play_PGC(vm); + else + link_values.command = Exit; + break; + case JumpVTS_TT: + /* Jump to Title:data1 in same VTS Title Domain */ + /* Only allowed from the VTS Menu Domain(VTSM) */ + /* or the Video Title Set Domain(VTS) */ + /* Stop SPRM9 Timer */ + /* Set SPRM1 and SPRM2 */ + assert((vm->state).domain == VTSM_DOMAIN || (vm->state).domain == VTS_DOMAIN); /* ?? */ + if(!set_VTS_TT(vm, (vm->state).vtsN, link_values.data1)) + assert(0); + link_values = play_PGC(vm); + break; + case JumpVTS_PTT: + /* Jump to Part:data2 of Title:data1 in same VTS Title Domain */ + /* Only allowed from the VTS Menu Domain(VTSM) */ + /* or the Video Title Set Domain(VTS) */ + /* Stop SPRM9 Timer */ + /* Set SPRM1 and SPRM2 */ + assert((vm->state).domain == VTSM_DOMAIN || (vm->state).domain == VTS_DOMAIN); /* ?? */ + if(!set_VTS_PTT(vm, (vm->state).vtsN, link_values.data1, link_values.data2)) + assert(0); + link_values = play_PGC_PG(vm, (vm->state).pgN); + break; + + case JumpSS_FP: + /* Jump to First Play Domain */ + /* Only allowed from the VTS Menu Domain(VTSM) */ + /* or the Video Manager domain (VMG) */ + /* Stop SPRM9 Timer and any GPRM counters */ + assert((vm->state).domain == VMGM_DOMAIN || (vm->state).domain == VTSM_DOMAIN); /* ?? */ + if (!set_FP_PGC(vm)) + assert(0); + link_values = play_PGC(vm); + break; + case JumpSS_VMGM_MENU: + /* Jump to Video Manger domain - Title Menu:data1 or any PGC in VMG */ + /* Allowed from anywhere except the VTS Title domain */ + /* Stop SPRM9 Timer and any GPRM counters */ + assert((vm->state).domain != VTS_DOMAIN); /* ?? */ + (vm->state).domain = VMGM_DOMAIN; + if(!set_MENU(vm, link_values.data1)) + assert(0); + link_values = play_PGC(vm); + break; + case JumpSS_VTSM: + /* Jump to a menu in Video Title domain, */ + /* or to a Menu is the current VTS */ + /* Stop SPRM9 Timer and any GPRM counters */ + /* ifoOpenNewVTSI:data1 */ + /* VTS_TTN_REG:data2 */ + /* get_MENU:data3 */ + if(link_values.data1 != 0) { + if (link_values.data1 != (vm->state).vtsN) { + /* the normal case */ + assert((vm->state).domain == VMGM_DOMAIN || (vm->state).domain == FP_DOMAIN); /* ?? */ + (vm->state).domain = VTSM_DOMAIN; + if (!ifoOpenNewVTSI(vm, vm->dvd, link_values.data1)) /* Also sets (vm->state).vtsN */ + assert(0); + } else { + /* This happens on some discs like "Captain Scarlet & the Mysterons" or + * the German RC2 of "Anatomie" in VTSM. */ + assert((vm->state).domain == VTSM_DOMAIN || + (vm->state).domain == VMGM_DOMAIN || (vm->state).domain == FP_DOMAIN); /* ?? */ + (vm->state).domain = VTSM_DOMAIN; + } + } else { + /* This happens on 'The Fifth Element' region 2. */ + assert((vm->state).domain == VTSM_DOMAIN); + } + /* I don't know what title is supposed to be used for. */ + /* Alien or Aliens has this != 1, I think. */ + /* assert(link_values.data2 == 1); */ + (vm->state).VTS_TTN_REG = link_values.data2; + /* TTN_REG (SPRM4), VTS_TTN_REG (SPRM5), TT_PGCN_REG (SPRM6) are linked, */ + /* so if one changes, the others must change to match it. */ + (vm->state).TTN_REG = get_TT(vm, (vm->state).vtsN, (vm->state).VTS_TTN_REG); + if(!set_MENU(vm, link_values.data3)) + assert(0); + link_values = play_PGC(vm); + break; + case JumpSS_VMGM_PGC: + /* set_PGCN:data1 */ + /* Stop SPRM9 Timer and any GPRM counters */ + assert((vm->state).domain != VTS_DOMAIN); /* ?? */ + (vm->state).domain = VMGM_DOMAIN; + if(!set_PGCN(vm, link_values.data1)) + assert(0); + link_values = play_PGC(vm); + break; + + case CallSS_FP: + /* set_RSMinfo:data1 */ + assert((vm->state).domain == VTS_DOMAIN); /* ?? */ + /* Must be called before domain is changed */ + set_RSMinfo(vm, link_values.data1, /* We dont have block info */ 0); + set_FP_PGC(vm); + link_values = play_PGC(vm); + break; + case CallSS_VMGM_MENU: + /* set_MENU:data1 */ + /* set_RSMinfo:data2 */ + assert((vm->state).domain == VTS_DOMAIN); /* ?? */ + /* Must be called before domain is changed */ + set_RSMinfo(vm, link_values.data2, /* We dont have block info */ 0); + (vm->state).domain = VMGM_DOMAIN; + if(!set_MENU(vm, link_values.data1)) + assert(0); + link_values = play_PGC(vm); + break; + case CallSS_VTSM: + /* set_MENU:data1 */ + /* set_RSMinfo:data2 */ + assert((vm->state).domain == VTS_DOMAIN); /* ?? */ + /* Must be called before domain is changed */ + set_RSMinfo(vm, link_values.data2, /* We dont have block info */ 0); + (vm->state).domain = VTSM_DOMAIN; + if(!set_MENU(vm, link_values.data1)) + assert(0); + link_values = play_PGC(vm); + break; + case CallSS_VMGM_PGC: + /* set_PGC:data1 */ + /* set_RSMinfo:data2 */ + assert((vm->state).domain == VTS_DOMAIN); /* ?? */ + /* Must be called before domain is changed */ + set_RSMinfo(vm, link_values.data2, /* We dont have block info */ 0); + (vm->state).domain = VMGM_DOMAIN; + if(!set_PGCN(vm, link_values.data1)) + assert(0); + link_values = play_PGC(vm); + break; + case PlayThis: + /* Should never happen. */ + assert(0); + break; + } + +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: After printout starts:\n"); + vm_print_current_domain_state(vm); + fprintf(MSG_OUT, "libdvdnav: After printout ends.\n"); +#endif + + } + (vm->state).blockN = link_values.data1 | (link_values.data2 << 16); + return 1; +} + + +/* Set functions */ + +static int set_TT(vm_t *vm, int tt) { + return set_PTT(vm, tt, 1); +} + +static int set_PTT(vm_t *vm, int tt, int ptt) { + assert(tt <= vm->vmgi->tt_srpt->nr_of_srpts); + return set_VTS_PTT(vm, vm->vmgi->tt_srpt->title[tt - 1].title_set_nr, + vm->vmgi->tt_srpt->title[tt - 1].vts_ttn, ptt); +} + +static int set_VTS_TT(vm_t *vm, int vtsN, int vts_ttn) { + return set_VTS_PTT(vm, vtsN, vts_ttn, 1); +} + +static int set_VTS_PTT(vm_t *vm, int vtsN, int vts_ttn, int part) { + int pgcN, pgN, res; + + (vm->state).domain = VTS_DOMAIN; + + if (vtsN != (vm->state).vtsN) + if (!ifoOpenNewVTSI(vm, vm->dvd, vtsN)) /* Also sets (vm->state).vtsN */ + return 0; + + if ((vts_ttn < 1) || (vts_ttn > vm->vtsi->vts_ptt_srpt->nr_of_srpts) || + (part < 1) || (part > vm->vtsi->vts_ptt_srpt->title[vts_ttn - 1].nr_of_ptts) ) { + return 0; + } + + pgcN = vm->vtsi->vts_ptt_srpt->title[vts_ttn - 1].ptt[part - 1].pgcn; + pgN = vm->vtsi->vts_ptt_srpt->title[vts_ttn - 1].ptt[part - 1].pgn; + + (vm->state).TT_PGCN_REG = pgcN; + (vm->state).PTTN_REG = part; + (vm->state).TTN_REG = get_TT(vm, vtsN, vts_ttn); + assert( (vm->state.TTN_REG) != 0 ); + (vm->state).VTS_TTN_REG = vts_ttn; + (vm->state).vtsN = vtsN; /* Not sure about this one. We can get to it easily from TTN_REG */ + /* Any other registers? */ + + res = set_PGCN(vm, pgcN); /* This clobber's state.pgN (sets it to 1), but we don't want clobbering here. */ + (vm->state).pgN = pgN; + return res; +} + +static int set_FP_PGC(vm_t *vm) { + (vm->state).domain = FP_DOMAIN; + if (!vm->vmgi->first_play_pgc) { + return set_PGCN(vm, 1); + } + (vm->state).pgc = vm->vmgi->first_play_pgc; + (vm->state).pgcN = vm->vmgi->vmgi_mat->first_play_pgc; + return 1; +} + + +static int set_MENU(vm_t *vm, int menu) { + assert((vm->state).domain == VMGM_DOMAIN || (vm->state).domain == VTSM_DOMAIN); + return set_PGCN(vm, get_ID(vm, menu)); +} + +static int set_PGCN(vm_t *vm, int pgcN) { + pgcit_t *pgcit; + + pgcit = get_PGCIT(vm); + assert(pgcit != NULL); /* ?? Make this return -1 instead */ + + if(pgcN < 1 || pgcN > pgcit->nr_of_pgci_srp) { +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: ** No such pgcN = %d\n", pgcN); +#endif + return 0; + } + + (vm->state).pgc = pgcit->pgci_srp[pgcN - 1].pgc; + (vm->state).pgcN = pgcN; + (vm->state).pgN = 1; + + if((vm->state).domain == VTS_DOMAIN) + (vm->state).TT_PGCN_REG = pgcN; + + return 1; +} + +/* Figure out the correct pgN from the cell and update (vm->state). */ +static int set_PGN(vm_t *vm) { + int new_pgN = 0; + + while(new_pgN < (vm->state).pgc->nr_of_programs + && (vm->state).cellN >= (vm->state).pgc->program_map[new_pgN]) + new_pgN++; + + if(new_pgN == (vm->state).pgc->nr_of_programs) /* We are at the last program */ + if((vm->state).cellN > (vm->state).pgc->nr_of_cells) + return 0; /* We are past the last cell */ + + (vm->state).pgN = new_pgN; + + if((vm->state).domain == VTS_DOMAIN) { + playback_type_t *pb_ty; + if((vm->state).TTN_REG > vm->vmgi->tt_srpt->nr_of_srpts) + return 0; /* ?? */ + pb_ty = &vm->vmgi->tt_srpt->title[(vm->state).TTN_REG - 1].pb_ty; + if(pb_ty->multi_or_random_pgc_title == /* One_Sequential_PGC_Title */ 0) { + int dummy, part; + vm_get_current_title_part(vm, &dummy, &part); + (vm->state).PTTN_REG = part; + } else { + /* FIXME: Handle RANDOM or SHUFFLE titles. */ + fprintf(MSG_OUT, "libdvdnav: RANDOM or SHUFFLE titles are NOT handled yet.\n"); + } + } + return 1; +} + +/* Must be called before domain is changed (set_PGCN()) */ +static void set_RSMinfo(vm_t *vm, int cellN, int blockN) { + int i; + + if(cellN) { + (vm->state).rsm_cellN = cellN; + (vm->state).rsm_blockN = blockN; + } else { + (vm->state).rsm_cellN = (vm->state).cellN; + (vm->state).rsm_blockN = blockN; + } + (vm->state).rsm_vtsN = (vm->state).vtsN; + (vm->state).rsm_pgcN = get_PGCN(vm); + + /* assert((vm->state).rsm_pgcN == (vm->state).TT_PGCN_REG); for VTS_DOMAIN */ + + for(i = 0; i < 5; i++) { + (vm->state).rsm_regs[i] = (vm->state).registers.SPRM[4 + i]; + } +} + + +/* Get functions */ + +/* Searches the TT tables, to find the current TT. + * returns the current TT. + * returns 0 if not found. + */ +static int get_TT(vm_t *vm, int vtsN, int vts_ttn) { + int i; + int tt=0; + + for(i = 1; i <= vm->vmgi->tt_srpt->nr_of_srpts; i++) { + if( vm->vmgi->tt_srpt->title[i - 1].title_set_nr == vtsN && + vm->vmgi->tt_srpt->title[i - 1].vts_ttn == vts_ttn) { + tt=i; + break; + } + } + return tt; +} + +/* Search for entry_id match of the PGC Category in the current VTS PGCIT table. + * Return pgcN based on entry_id match. + */ +static int get_ID(vm_t *vm, int id) { + int pgcN, i; + pgcit_t *pgcit; + + /* Relies on state to get the correct pgcit. */ + pgcit = get_PGCIT(vm); + assert(pgcit != NULL); +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: ** Searching for menu (0x%x) entry PGC\n", id); +#endif + + /* Force high bit set. */ + id |=0x80; + + /* Get menu/title */ + for(i = 0; i < pgcit->nr_of_pgci_srp; i++) { + if( (pgcit->pgci_srp[i].entry_id) == id) { + pgcN = i + 1; +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: Found menu.\n"); +#endif + return pgcN; + } + } +#ifdef TRACE + fprintf(MSG_OUT, "libdvdnav: ** No such id/menu (0x%02x) entry PGC\n", id & 0x7f); + for(i = 0; i < pgcit->nr_of_pgci_srp; i++) { + if ( (pgcit->pgci_srp[i].entry_id & 0x80) == 0x80) { + fprintf(MSG_OUT, "libdvdnav: Available menus: 0x%x\n", + pgcit->pgci_srp[i].entry_id & 0x7f); + } + } +#endif + return 0; /* error */ +} + +/* FIXME: we have a pgcN member in the vm's state now, so this should be obsolete */ +static int get_PGCN(vm_t *vm) { + pgcit_t *pgcit; + int pgcN = 1; + + pgcit = get_PGCIT(vm); + + if (pgcit) { + while(pgcN <= pgcit->nr_of_pgci_srp) { + if(pgcit->pgci_srp[pgcN - 1].pgc == (vm->state).pgc) { + assert((vm->state).pgcN == pgcN); + return pgcN; + } + pgcN++; + } + } + fprintf(MSG_OUT, "libdvdnav: get_PGCN failed. Was trying to find pgcN in domain %d\n", + (vm->state).domain); + return 0; /* error */ +} + +static pgcit_t* get_MENU_PGCIT(vm_t *vm, ifo_handle_t *h, uint16_t lang) { + int i; + + if(h == NULL || h->pgci_ut == NULL) { + fprintf(MSG_OUT, "libdvdnav: *** pgci_ut handle is NULL ***\n"); + return NULL; /* error? */ + } + + i = 0; + while(i < h->pgci_ut->nr_of_lus + && h->pgci_ut->lu[i].lang_code != lang) + i++; + if(i == h->pgci_ut->nr_of_lus) { + fprintf(MSG_OUT, "libdvdnav: Language '%c%c' not found, using '%c%c' instead\n", + (char)(lang >> 8), (char)(lang & 0xff), + (char)(h->pgci_ut->lu[0].lang_code >> 8), + (char)(h->pgci_ut->lu[0].lang_code & 0xff)); + fprintf(MSG_OUT, "libdvdnav: Menu Languages available: "); + for(i = 0; i < h->pgci_ut->nr_of_lus; i++) { + fprintf(MSG_OUT, "%c%c ", + (char)(h->pgci_ut->lu[i].lang_code >> 8), + (char)(h->pgci_ut->lu[i].lang_code & 0xff)); + } + fprintf(MSG_OUT, "\n"); + i = 0; /* error? */ + } + + return h->pgci_ut->lu[i].pgcit; +} + +/* Uses state to decide what to return */ +static pgcit_t* get_PGCIT(vm_t *vm) { + pgcit_t *pgcit; + + switch ((vm->state).domain) { + case VTS_DOMAIN: + pgcit = vm->vtsi->vts_pgcit; + break; + case VTSM_DOMAIN: + pgcit = get_MENU_PGCIT(vm, vm->vtsi, (vm->state).registers.SPRM[0]); + break; + case VMGM_DOMAIN: + case FP_DOMAIN: + pgcit = get_MENU_PGCIT(vm, vm->vmgi, (vm->state).registers.SPRM[0]); + break; + default: + abort(); + } + + return pgcit; +} + + +/* Debug functions */ + +#ifdef TRACE +void vm_position_print(vm_t *vm, vm_position_t *position) { + fprintf(MSG_OUT, "libdvdnav: But=%x Spu=%x Aud=%x Ang=%x Hop=%x vts=%x dom=%x cell=%x cell_restart=%x cell_start=%x still=%x block=%x\n", + position->button, + position->spu_channel, + position->audio_channel, + position->angle_channel, + position->hop_channel, + position->vts, + position->domain, + position->cell, + position->cell_restart, + position->cell_start, + position->still, + position->block); +} +#endif + -- cgit v1.2.1