From: notaz Date: Sun, 3 Jul 2011 19:01:51 +0000 (+0300) Subject: cdriso: handle eboot and it's TOC, some refactoring X-Git-Tag: r9~44 X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=commitdiff_plain;h=9a92bffbed92c9b6bd7d0ddde7c0982a8590959e cdriso: handle eboot and it's TOC, some refactoring This gives cdda support for eboot --- diff --git a/frontend/main.c b/frontend/main.c index 068fe501..6a37bef4 100644 --- a/frontend/main.c +++ b/frontend/main.c @@ -94,7 +94,7 @@ void set_cd_image(const char *fname) if (ext && ( strcasecmp(ext, ".z") == 0 || strcasecmp(ext, ".bz") == 0 || - strcasecmp(ext, ".znx") == 0 || strcasecmp(ext, ".pbp") == 0)) { + strcasecmp(ext, ".znx") == 0 /*|| strcasecmp(ext, ".pbp") == 0*/)) { SetIsoFile(NULL); cdrcimg_set_fname(fname); strcpy(Config.Cdr, "builtin_cdrcimg"); diff --git a/libpcsxcore/cdriso.c b/libpcsxcore/cdriso.c index 6df8b676..c29fd775 100644 --- a/libpcsxcore/cdriso.c +++ b/libpcsxcore/cdriso.c @@ -31,6 +31,7 @@ #include #include #endif +#include static FILE *cdHandle = NULL; static FILE *cddaHandle = NULL; @@ -55,14 +56,26 @@ static pthread_t threadid; static unsigned int initial_offset = 0; static boolean playing = FALSE; static boolean cddaBigEndian = FALSE; -static unsigned int cddaCurOffset = 0; -static unsigned int cddaStartOffset; +static unsigned int cdda_cur_sector; +static unsigned int cdda_start_sector; /* Frame offset into CD image where pregap data would be found if it was there. * If a game seeks there we must *not* return subchannel data since it's * not in the CD image, so that cdrom code can fake subchannel data instead. * XXX: there could be multiple pregaps but PSX dumps only have one? */ static unsigned int pregapOffset; +// compressed image stuff +static struct { + unsigned char buff_raw[16][CD_FRAMESIZE_RAW]; + unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100]; + unsigned int *index_table; + unsigned int index_len; + unsigned int current_block; + unsigned int sector_in_blk; +} *compr_img; + +int (*cdimg_read_func)(FILE *f, void *dest, int sector, int offset); + char* CALLBACK CDR__getDriveLetter(void); long CALLBACK CDR__configure(void); long CALLBACK CDR__test(void); @@ -178,32 +191,21 @@ static void *playthread(void *param) t = GetTickCount() + CDDA_FRAMETIME; - if (subChanMixed) { - s = 0; - - for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) { - // read one sector - d = fread(sndbuffer + CD_FRAMESIZE_RAW * i, 1, CD_FRAMESIZE_RAW, cddaHandle); - if (d < CD_FRAMESIZE_RAW) { - break; - } - - s += d; + s = 0; + for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) { + d = cdimg_read_func(cddaHandle, sndbuffer + s, cdda_cur_sector, 0); + if (d < CD_FRAMESIZE_RAW) + break; - fread(subbuffer, 1, SUB_FRAMESIZE, cddaHandle); - if (subChanRaw) DecodeRawSubData(); - } + s += d; + cdda_cur_sector++; } - else { - s = fread(sndbuffer, 1, sizeof(sndbuffer), cddaHandle); - if (subHandle != NULL) { - fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); - if (subChanRaw) DecodeRawSubData(); + if (subHandle != NULL) { + fseek(subHandle, cdda_cur_sector * SUB_FRAMESIZE, SEEK_SET); + fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); - // a bit crude but ohwell - fseek(subHandle, (sizeof(sndbuffer) / CD_FRAMESIZE_RAW - 1) * SUB_FRAMESIZE, SEEK_CUR); - } + if (subChanRaw) DecodeRawSubData(); } if (s == 0) { @@ -223,8 +225,6 @@ static void *playthread(void *param) SPU_playCDDAchannel((short *)sndbuffer, s); } - - cddaCurOffset += s; } #ifdef _WIN32 @@ -247,23 +247,15 @@ static void stopCDDA() { #else pthread_join(threadid, NULL); #endif - - initial_offset = 0; } // start the CDDA playback -static void startCDDA(unsigned int offset) { +static void startCDDA(unsigned int sector) { if (playing) { - if (initial_offset == offset) { - return; - } stopCDDA(); } - initial_offset = offset; - cddaCurOffset = initial_offset; - fseek(cddaHandle, initial_offset, SEEK_SET); - + cdda_cur_sector = sector; playing = TRUE; #ifdef _WIN32 @@ -703,6 +695,133 @@ static int parsemds(const char *isofile) { return 0; } +static int parsepbp(const char *isofile) { + struct { + unsigned int sig; + unsigned int dontcare[8]; + unsigned int psar_offs; + } pbp_hdr; + struct { + unsigned char type; + unsigned char pad0; + unsigned char track; + char index0[3]; + char pad1; + char index1[3]; + } toc_entry; + struct { + unsigned int offset; + unsigned int size; + unsigned int dontcare[6]; + } index_entry; + char psar_sig[9]; + unsigned int t, cd_length, cdimg_base; + const char *ext = NULL; + int i, ret; + + if (strlen(isofile) >= 4) + ext = isofile + strlen(isofile) - 4; + if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0)) + return -1; + + numtracks = 0; + + ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle); + if (ret != sizeof(pbp_hdr)) { + fprintf(stderr, "failed to read pbp\n"); + goto fail_io; + } + + ret = fseek(cdHandle, pbp_hdr.psar_offs, SEEK_SET); + if (ret != 0) { + fprintf(stderr, "failed to seek to %x\n", pbp_hdr.psar_offs); + goto fail_io; + } + + fread(psar_sig, 1, sizeof(psar_sig), cdHandle); + psar_sig[8] = 0; + if (strcmp(psar_sig, "PSISOIMG") != 0) { + fprintf(stderr, "bad psar_sig: %s\n", psar_sig); + goto fail_io; + } + + // seek to TOC + ret = fseek(cdHandle, pbp_hdr.psar_offs + 0x800, SEEK_SET); + if (ret != 0) { + fprintf(stderr, "failed to seek to %x\n", pbp_hdr.psar_offs); + goto fail_io; + } + + // first 3 entries are special + fseek(cdHandle, sizeof(toc_entry), SEEK_CUR); + fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); + numtracks = btoi(toc_entry.index1[0]); + + fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); + cd_length = btoi(toc_entry.index1[0]) * 60 * 75 + + btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]); + + for (i = 1; i <= numtracks; i++) { + fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); + + ti[i].type = (toc_entry.type == 1) ? CDDA : DATA; + + ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 + + btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]); + ti[i].start[0] = btoi(toc_entry.index1[0]); + ti[i].start[1] = btoi(toc_entry.index1[1]); + ti[i].start[2] = btoi(toc_entry.index1[2]); + + if (i > 1) { + t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); + sec2msf(t, ti[i - 1].length); + } + } + t = cd_length - ti[numtracks].start_offset; + sec2msf(t, ti[numtracks].length); + + // seek to ISO index + ret = fseek(cdHandle, pbp_hdr.psar_offs + 0x4000, SEEK_SET); + if (ret != 0) { + fprintf(stderr, "failed to seek to ISO index\n"); + goto fail_io; + } + + compr_img = calloc(1, sizeof(*compr_img)); + if (compr_img == NULL) + goto fail_io; + + compr_img->current_block = (unsigned int)-1; + + compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry); + compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); + if (compr_img->index_table == NULL) + goto fail_io; + + cdimg_base = pbp_hdr.psar_offs + 0x100000; + for (i = 0; i < compr_img->index_len; i++) { + ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle); + if (ret != sizeof(index_entry)) { + fprintf(stderr, "failed to read index_entry #%d\n", i); + goto fail_index; + } + + if (index_entry.size == 0) + break; + + compr_img->index_table[i] = cdimg_base + index_entry.offset; + } + compr_img->index_table[i] = cdimg_base + index_entry.offset + index_entry.size; + + return 0; + +fail_index: + free(compr_img->index_table); + compr_img->index_table = NULL; +fail_io: + return -1; +} + // this function tries to get the .sub file of the given .img static int opensubfile(const char *isoname) { char subname[MAXPATHLEN]; @@ -744,6 +863,139 @@ static int opensbifile(const char *isoname) { return LoadSBI(sbiname, s); } +static int cdread_normal(FILE *f, void *dest, int sector, int offset) +{ + fseek(f, sector * CD_FRAMESIZE_RAW + offset, SEEK_SET); + return fread(dest, 1, CD_FRAMESIZE_RAW - offset, f); +} + +static int cdread_sub_mixed(FILE *f, void *dest, int sector, int offset) +{ + int ret; + + fseek(f, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + offset, SEEK_SET); + ret = fread(dest, 1, CD_FRAMESIZE_RAW - offset, f); + fread(subbuffer, 1, SUB_FRAMESIZE, f); + + if (subChanRaw) DecodeRawSubData(); + + return ret; +} + +static int uncompress2(void *out, unsigned long *out_size, void *in, unsigned long in_size) +{ + static z_stream z; + int ret = 0; + + if (z.zalloc == NULL) { + // XXX: one-time leak here.. + z.next_in = Z_NULL; + z.avail_in = 0; + z.zalloc = Z_NULL; + z.zfree = Z_NULL; + z.opaque = Z_NULL; + ret = inflateInit2(&z, -15); + } + else + ret = inflateReset(&z); + if (ret != Z_OK) + return ret; + + z.next_in = in; + z.avail_in = in_size; + z.next_out = out; + z.avail_out = *out_size; + + ret = inflate(&z, Z_NO_FLUSH); + //inflateEnd(&z); + + *out_size -= z.avail_out; + return ret == 1 ? 0 : ret; +} + +static int cdread_compressed(FILE *f, void *dest, int sector, int offset) +{ + unsigned int start_byte, size; + unsigned long cdbuffer_size; + int ret, block; + + block = sector >> 4; + compr_img->sector_in_blk = sector & 15; + + if (block == compr_img->current_block) { + //printf("hit sect %d\n", sector); + goto finish; + } + + if (sector >= compr_img->index_len * 16) { + fprintf(stderr, "sector %d is past img end\n", sector); + return -1; + } + + start_byte = compr_img->index_table[block]; + if (fseek(cdHandle, start_byte, SEEK_SET) != 0) { + fprintf(stderr, "seek error for block %d at %x: ", + block, start_byte); + perror(NULL); + return -1; + } + + size = compr_img->index_table[block + 1] - start_byte; + if (size > sizeof(compr_img->buff_compressed)) { + fprintf(stderr, "block %d is too large: %u\n", block, size); + return -1; + } + + if (fread(compr_img->buff_compressed, 1, size, cdHandle) != size) { + fprintf(stderr, "read error for block %d at %x: ", block, start_byte); + perror(NULL); + return -1; + } + + cdbuffer_size = sizeof(compr_img->buff_raw[0]) * 16; + ret = uncompress2(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size); + if (ret != 0) { + fprintf(stderr, "uncompress failed with %d for block %d, sector %d\n", + ret, block, sector); + return -1; + } + if (cdbuffer_size != sizeof(compr_img->buff_raw[0]) * 16) + fprintf(stderr, "cdbuffer_size: %lu != %d, sector %d\n", cdbuffer_size, + sizeof(compr_img->buff_raw[0]) * 16, sector); + + // done at last! + compr_img->current_block = block; + +finish: + if (dest != cdbuffer) // copy avoid HACK + memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk] + offset, + CD_FRAMESIZE_RAW - offset); + return CD_FRAMESIZE_RAW - offset; +} + +static int cdread_2048(FILE *f, void *dest, int sector, int offset) +{ + int ret; + + fseek(f, sector * 2048, SEEK_SET); + ret = fread((char *)dest + 12, 1, 2048, f); + + // not really necessary, fake mode 2 header + memset(cdbuffer, 0, 12); + sec2msf(sector + 2 * 75, (char *)cdbuffer); + cdbuffer[3] = 1; + + return ret; +} + +static unsigned char * CALLBACK ISOgetBuffer_compr(void) { + return compr_img->buff_raw[compr_img->sector_in_blk] + 12; +} + +static unsigned char * CALLBACK ISOgetBuffer(void) { + return cdbuffer; +} + static void PrintTracks(void) { int i; @@ -758,6 +1010,8 @@ static void PrintTracks(void) { // This function is invoked by the front-end when opening an ISO // file for playback static long CALLBACK ISOopen(void) { + boolean isMode1ISO = FALSE; + if (cdHandle != NULL) { return 0; // it's already open } @@ -772,9 +1026,11 @@ static long CALLBACK ISOopen(void) { cddaBigEndian = FALSE; subChanMixed = FALSE; subChanRaw = FALSE; - subChanMixed = FALSE; pregapOffset = 0; + CDR_getBuffer = ISOgetBuffer; + cdimg_read_func = cdread_normal; + if (parsecue(GetIsoFile()) == 0) { SysPrintf("[+cue]"); } @@ -787,6 +1043,11 @@ static long CALLBACK ISOopen(void) { else if (parsemds(GetIsoFile()) == 0) { SysPrintf("[+mds]"); } + else if (parsepbp(GetIsoFile()) == 0) { + SysPrintf("[pbp]"); + CDR_getBuffer = ISOgetBuffer_compr; + cdimg_read_func = cdread_compressed; + } if (!subChanMixed && opensubfile(GetIsoFile()) == 0) { SysPrintf("[+sub]"); @@ -795,15 +1056,33 @@ static long CALLBACK ISOopen(void) { SysPrintf("[+sbi]"); } + // guess whether it is mode1/2048 + fseek(cdHandle, 0, SEEK_END); + if (ftell(cdHandle) % 2048 == 0) { + unsigned int modeTest = 0; + fseek(cdHandle, 0, SEEK_SET); + fread(&modeTest, 4, 1, cdHandle); + if (SWAP32(modeTest) != 0xffffff00) { + SysPrintf("[2048]"); + isMode1ISO = TRUE; + } + } + fseek(cdHandle, 0, SEEK_SET); + SysPrintf(".\n"); PrintTracks(); + if (subChanMixed) + cdimg_read_func = cdread_sub_mixed; + else if (isMode1ISO) + cdimg_read_func = cdread_2048; + // make sure we have another handle open for cdda if (numtracks > 1 && ti[1].handle == NULL) { ti[1].handle = fopen(GetIsoFile(), "rb"); } - cddaCurOffset = cddaStartOffset = 0; + cdda_cur_sector = cdda_start_sector = 0; return 0; } @@ -822,6 +1101,12 @@ static long CALLBACK ISOclose(void) { stopCDDA(); cddaHandle = NULL; + if (compr_img != NULL) { + free(compr_img->index_table); + free(compr_img); + compr_img = NULL; + } + for (i = 1; i <= numtracks; i++) { if (ti[i].handle != NULL) { fclose(ti[i].handle); @@ -928,33 +1213,18 @@ static long CALLBACK ISOreadTrack(unsigned char *time) { } } - if (subChanMixed) { - fseek(cdHandle, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + 12, SEEK_SET); - fread(cdbuffer, 1, DATA_SIZE, cdHandle); - fread(subbuffer, 1, SUB_FRAMESIZE, cdHandle); + cdimg_read_func(cdHandle, cdbuffer, sector, 12); - if (subChanRaw) DecodeRawSubData(); - } - else { - fseek(cdHandle, sector * CD_FRAMESIZE_RAW + 12, SEEK_SET); - fread(cdbuffer, 1, DATA_SIZE, cdHandle); - - if (subHandle != NULL) { - fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET); - fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); + if (subHandle != NULL) { + fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET); + fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); - if (subChanRaw) DecodeRawSubData(); - } + if (subChanRaw) DecodeRawSubData(); } return 0; } -// return readed track -static unsigned char * CALLBACK ISOgetBuffer(void) { - return cdbuffer; -} - // plays cdda audio // sector: byte 0 - minute; byte 1 - second; byte 2 - frame // does NOT uses bcd format @@ -980,7 +1250,7 @@ static long CALLBACK ISOplay(unsigned char *time) { if (ti[i].handle != NULL) break; - cddaStartOffset = abs_sect - file_sect; + cdda_start_sector = abs_sect - file_sect; cddaHandle = ti[i].handle; if (pregapOffset && (unsigned int)(pregapOffset - file_sect) < 2 * 75) { @@ -989,14 +1259,7 @@ static long CALLBACK ISOplay(unsigned char *time) { } if (SPU_playCDDAchannel != NULL) { - if (subChanMixed) { - startCDDA(file_sect * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE)); - } - else { - startCDDA(file_sect * CD_FRAMESIZE_RAW); - if (subHandle != NULL) - fseek(subHandle, file_sect * SUB_FRAMESIZE, SEEK_SET); - } + startCDDA(file_sect); } return 0; } @@ -1029,7 +1292,7 @@ static long CALLBACK ISOgetStatus(struct CdrStat *stat) { stat->Type = 0x01; } - sec = (cddaStartOffset + cddaCurOffset) / CD_FRAMESIZE_RAW; + sec = cdda_start_sector + cdda_cur_sector; sec2msf(sec, (char *)stat->Time); return 0;