X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fcdriso.c;h=eeb2c351a28c47f70ca5400f549f36e6403414ac;hb=9165d434d935746da54484381ebbee754e899680;hp=2dcaf49ba17793688b1b44169c2be60f216409b9;hpb=0e17864883bb852c5c91d8c04730d24ef512283f;p=pcsx_rearmed.git diff --git a/libpcsxcore/cdriso.c b/libpcsxcore/cdriso.c index 2dcaf49b..eeb2c351 100644 --- a/libpcsxcore/cdriso.c +++ b/libpcsxcore/cdriso.c @@ -30,8 +30,7 @@ #include #include #define strcasecmp _stricmp -#define usleep(x) Sleep((x) / 1000) -#else +#elif P_HAVE_PTHREAD #include #include #include @@ -54,7 +53,6 @@ static FILE *subHandle = NULL; static boolean subChanMixed = FALSE; static boolean subChanRaw = FALSE; -static boolean subChanMissing = FALSE; static boolean multifile = FALSE; @@ -84,16 +82,18 @@ static struct { #ifdef HAVE_CHD static struct { - unsigned char (*buffer)[CD_FRAMESIZE_RAW + SUB_FRAMESIZE]; + unsigned char *buffer; chd_file* chd; const chd_header* header; unsigned int sectors_per_hunk; - unsigned int current_hunk; + unsigned int current_hunk[2]; + unsigned int current_buffer; unsigned int sector_in_hunk; } *chd_img; #endif -int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector); +static int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector); +static int (*cdimg_read_sub_func)(FILE *f, int sector); char* CALLBACK CDR__getDriveLetter(void); long CALLBACK CDR__configure(void); @@ -109,7 +109,7 @@ struct trackinfo { char start[3]; // MSF-format char length[3]; // MSF-format FILE *handle; // for multi-track images CDDA - unsigned int start_offset; // byte offset from start of above file + unsigned int start_offset; // byte offset from start of above file (chd: sector offset) }; #define MAXTRACKS 100 /* How many tracks can a CD hold? */ @@ -680,6 +680,7 @@ static int handlepbp(const char *isofile) { off_t psisoimg_offs, cdimg_base; unsigned int t, cd_length; unsigned int offsettab[8]; + unsigned int psar_offs, index_entry_size, index_entry_offset; const char *ext = NULL; int i, ret; @@ -698,21 +699,23 @@ static int handlepbp(const char *isofile) { goto fail_io; } - ret = fseeko(cdHandle, pbp_hdr.psar_offs, SEEK_SET); + psar_offs = SWAP32(pbp_hdr.psar_offs); + + ret = fseeko(cdHandle, psar_offs, SEEK_SET); if (ret != 0) { - SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs); + SysPrintf("failed to seek to %x\n", psar_offs); goto fail_io; } - psisoimg_offs = pbp_hdr.psar_offs; + psisoimg_offs = psar_offs; if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig)) goto fail_io; psar_sig[10] = 0; if (strcmp(psar_sig, "PSTITLEIMG") == 0) { // multidisk image? - ret = fseeko(cdHandle, pbp_hdr.psar_offs + 0x200, SEEK_SET); + ret = fseeko(cdHandle, psar_offs + 0x200, SEEK_SET); if (ret != 0) { - SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs + 0x200); + SysPrintf("failed to seek to %x\n", psar_offs + 0x200); goto fail_io; } @@ -734,7 +737,7 @@ static int handlepbp(const char *isofile) { if (cdrIsoMultidiskSelect >= cdrIsoMultidiskCount) cdrIsoMultidiskSelect = 0; - psisoimg_offs += offsettab[cdrIsoMultidiskSelect]; + psisoimg_offs += SWAP32(offsettab[cdrIsoMultidiskSelect]); ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET); if (ret != 0) { @@ -818,12 +821,15 @@ static int handlepbp(const char *isofile) { goto fail_index; } - if (index_entry.size == 0) + index_entry_size = SWAP32(index_entry.size); + index_entry_offset = SWAP32(index_entry.offset); + + 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; } - compr_img->index_table[i] = cdimg_base + index_entry.offset + index_entry.size; + compr_img->index_table[i] = cdimg_base + index_entry_offset + index_entry_size; return 0; @@ -931,7 +937,7 @@ fail_io: #ifdef HAVE_CHD static int handlechd(const char *isofile) { - int frame_offset = 0; + int frame_offset = 150; int file_offset = 0; chd_img = calloc(1, sizeof(*chd_img)); @@ -946,12 +952,13 @@ static int handlechd(const char *isofile) { chd_img->header = chd_get_header(chd_img->chd); - chd_img->buffer = malloc(chd_img->header->hunkbytes); + chd_img->buffer = malloc(chd_img->header->hunkbytes * 2); if (chd_img->buffer == NULL) goto fail_io; chd_img->sectors_per_hunk = chd_img->header->hunkbytes / (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); - chd_img->current_hunk = (unsigned int)-1; + chd_img->current_hunk[0] = (unsigned int)-1; + chd_img->current_hunk[1] = (unsigned int)-1; cddaBigEndian = TRUE; @@ -980,20 +987,26 @@ static int handlechd(const char *isofile) { else break; - if(md.track == 1) - md.pregap = 150; - else - sec2msf(msf2sec(ti[md.track-1].length) + md.pregap, ti[md.track-1].length); + SysPrintf("chd: %s\n", meta); + + if (md.track == 1) { + if (!strncmp(md.subtype, "RW", 2)) { + subChanMixed = TRUE; + if (!strcmp(md.subtype, "RW_RAW")) + subChanRaw = TRUE; + } + } ti[md.track].type = !strncmp(md.type, "AUDIO", 5) ? CDDA : DATA; sec2msf(frame_offset + md.pregap, ti[md.track].start); sec2msf(md.frames, ti[md.track].length); - ti[md.track].start_offset = file_offset; + ti[md.track].start_offset = file_offset + md.pregap; - frame_offset += md.pregap + md.frames + md.postgap; - file_offset += md.frames + md.postgap; + // XXX: what about postgap? + frame_offset += md.frames; + file_offset += md.frames; numtracks++; } @@ -1058,29 +1071,48 @@ static int opensbifile(const char *isoname) { static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector) { - fseek(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET); - return fread(dest, 1, CD_FRAMESIZE_RAW, f); + int ret; + if (fseek(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET)) + goto fail_io; + ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); + if (ret <= 0) + goto fail_io; + return ret; + +fail_io: + // often happens in cdda gaps of a split cue/bin, so not logged + //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); + return -1; } static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector) { int ret; - fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET); + if (fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET)) + goto fail_io; ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); + if (ret <= 0) + goto fail_io; + return ret; + +fail_io: + //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); + return -1; +} + +static int cdread_sub_sub_mixed(FILE *f, int sector) +{ + if (fseek(f, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + CD_FRAMESIZE_RAW, SEEK_SET)) + goto fail_io; if (fread(subbuffer, 1, SUB_FRAMESIZE, f) != SUB_FRAMESIZE) goto fail_io; - if (subChanRaw) DecodeRawSubData(); - goto done; + return SUB_FRAMESIZE; fail_io: -#ifndef NDEBUG - SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); -#endif - -done: - return ret; + SysPrintf("subchannel: file IO error %d, sector %u\n", errno, sector); + return -1; } static int uncompress2_pcsx(void *out, unsigned long *out_size, void *in, unsigned long in_size) @@ -1185,27 +1217,66 @@ finish: } #ifdef HAVE_CHD +static unsigned char *chd_get_sector(unsigned int current_buffer, unsigned int sector_in_hunk) +{ + return chd_img->buffer + + current_buffer * chd_img->header->hunkbytes + + sector_in_hunk * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); +} + static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector) { int hunk; - if (base) - sector += base; + sector += base; hunk = sector / chd_img->sectors_per_hunk; chd_img->sector_in_hunk = sector % chd_img->sectors_per_hunk; - if (hunk != chd_img->current_hunk) + if (hunk == chd_img->current_hunk[0]) + chd_img->current_buffer = 0; + else if (hunk == chd_img->current_hunk[1]) + chd_img->current_buffer = 1; + else { - chd_read(chd_img->chd, hunk, chd_img->buffer); - chd_img->current_hunk = hunk; + chd_read(chd_img->chd, hunk, chd_img->buffer + + chd_img->current_buffer * chd_img->header->hunkbytes); + chd_img->current_hunk[chd_img->current_buffer] = hunk; } if (dest != cdbuffer) // copy avoid HACK - memcpy(dest, chd_img->buffer[chd_img->sector_in_hunk], + memcpy(dest, chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk), CD_FRAMESIZE_RAW); return CD_FRAMESIZE_RAW; } + +static int cdread_sub_chd(FILE *f, int sector) +{ + unsigned int sector_in_hunk; + unsigned int buffer; + int hunk; + + if (!subChanMixed) + return -1; + + hunk = sector / chd_img->sectors_per_hunk; + sector_in_hunk = sector % chd_img->sectors_per_hunk; + + if (hunk == chd_img->current_hunk[0]) + buffer = 0; + else if (hunk == chd_img->current_hunk[1]) + buffer = 1; + else + { + buffer = chd_img->current_buffer ^ 1; + chd_read(chd_img->chd, hunk, chd_img->buffer + + buffer * chd_img->header->hunkbytes); + chd_img->current_hunk[buffer] = hunk; + } + + memcpy(subbuffer, chd_get_sector(buffer, sector_in_hunk) + CD_FRAMESIZE_RAW, SUB_FRAMESIZE); + return SUB_FRAMESIZE; +} #endif static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector) @@ -1220,7 +1291,7 @@ static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector) sec2msf(sector + 2 * 75, (char *)&cdbuffer[12]); cdbuffer[12 + 3] = 1; - return ret; + return 12*2 + ret; } static unsigned char * CALLBACK ISOgetBuffer_compr(void) { @@ -1229,7 +1300,7 @@ static unsigned char * CALLBACK ISOgetBuffer_compr(void) { #ifdef HAVE_CHD static unsigned char * CALLBACK ISOgetBuffer_chd(void) { - return chd_img->buffer[chd_img->sector_in_hunk] + 12; + return chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk) + 12; } #endif @@ -1254,7 +1325,8 @@ static long CALLBACK ISOopen(void) { boolean isMode1ISO = FALSE; char alt_bin_filename[MAXPATHLEN]; const char *bin_filename; - char image_str[1024] = {0}; + char image_str[1024]; + int is_chd = 0; if (cdHandle != NULL) { return 0; // it's already open @@ -1267,7 +1339,8 @@ static long CALLBACK ISOopen(void) { return -1; } - sprintf(image_str, "Loaded CD Image: %s", GetIsoFile()); + snprintf(image_str, sizeof(image_str) - 6*4 - 1, + "Loaded CD Image: %s", GetIsoFile()); cddaBigEndian = FALSE; subChanMixed = FALSE; @@ -1278,6 +1351,7 @@ static long CALLBACK ISOopen(void) { CDR_getBuffer = ISOgetBuffer; cdimg_read_func = cdread_normal; + cdimg_read_sub_func = NULL; if (parsetoc(GetIsoFile()) == 0) { strcat(image_str, "[+toc]"); @@ -1306,6 +1380,8 @@ static long CALLBACK ISOopen(void) { strcat(image_str, "[+chd]"); CDR_getBuffer = ISOgetBuffer_chd; cdimg_read_func = cdread_chd; + cdimg_read_sub_func = cdread_sub_chd; + is_chd = 1; } #endif @@ -1366,10 +1442,14 @@ static long CALLBACK ISOopen(void) { PrintTracks(); - if (subChanMixed) + if (subChanMixed && !is_chd) { cdimg_read_func = cdread_sub_mixed; - else if (isMode1ISO) + cdimg_read_sub_func = cdread_sub_sub_mixed; + } + else if (isMode1ISO) { cdimg_read_func = cdread_2048; + cdimg_read_sub_func = NULL; + } // make sure we have another handle open for cdda if (numtracks > 1 && ti[1].handle == NULL) { @@ -1509,28 +1589,13 @@ static boolean CALLBACK ISOreadTrack(unsigned char *time) { return 0; } - if (pregapOffset) { - subChanMissing = FALSE; - if (sector >= pregapOffset) { - sector -= 2 * 75; - if (sector < pregapOffset) - subChanMissing = TRUE; - } - } + if (pregapOffset && sector >= pregapOffset) + sector -= 2 * 75; ret = cdimg_read_func(cdHandle, 0, cdbuffer, sector); - if (ret < 0) + if (ret < 12*2 + 2048) return 0; - if (subHandle != NULL) { - fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET); - if (fread(subbuffer, 1, SUB_FRAMESIZE, subHandle) != SUB_FRAMESIZE) - /* Faulty subchannel data shouldn't cause a read failure */ - return 0; - - if (subChanRaw) DecodeRawSubData(); - } - return 1; } @@ -1549,12 +1614,29 @@ static long CALLBACK ISOstop(void) { } // gets subchannel data -static unsigned char* CALLBACK ISOgetBufferSub(void) { - if ((subHandle != NULL || subChanMixed) && !subChanMissing) { - return subbuffer; +static unsigned char* CALLBACK ISOgetBufferSub(int sector) { + if (pregapOffset && sector >= pregapOffset) { + sector -= 2 * 75; + if (sector < pregapOffset) // ? + return NULL; + } + + if (cdimg_read_sub_func != NULL) { + if (cdimg_read_sub_func(cdHandle, sector) != SUB_FRAMESIZE) + return NULL; + } + else if (subHandle != NULL) { + if (fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET)) + return NULL; + if (fread(subbuffer, 1, SUB_FRAMESIZE, subHandle) != SUB_FRAMESIZE) + return NULL; + } + else { + return NULL; } - return NULL; + if (subChanRaw) DecodeRawSubData(); + return subbuffer; } static long CALLBACK ISOgetStatus(struct CdrStat *stat) {