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-rw-r--r--lib/cdreader.cpp668
1 files changed, 334 insertions, 334 deletions
diff --git a/lib/cdreader.cpp b/lib/cdreader.cpp
index 83bd1b3..7777c4d 100644
--- a/lib/cdreader.cpp
+++ b/lib/cdreader.cpp
@@ -1,334 +1,334 @@
-/*
- * PSX-Tools Bundle Pack
- * Copyright (C) 2002-2003 Nicolas "Pixel" Noble
- *
- * 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
- */
-
-/* $Id: cdreader.cpp,v 1.19 2003-12-26 19:05:31 pixel Exp $ */
-
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include "cdreader.h"
-#include "Exceptions.h"
-#include "generic.h"
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#else
-#define _(x) x
-#endif
-#include "cdabstract.h"
-
-#define nsectorsarow 1
-#define cachesize 2048
-
-bool cdreader::CanWrite() const {
- return 0;
-}
-
-bool cdreader::CanRead() const {
- return 1;
-}
-
-bool cdreader::CanSeek() const {
- return 1;
-}
-
-String cdreader::GetName() const {
- return n + " raw reading";
-}
-
-ssize_t cdreader::GetSize() const {
- return -1;
-}
-
-off_t cdreader::seek(off_t offset, int whence) throw (GeneralException) {
- switch (whence) {
- case SEEK_SET:
- itell = offset;
- break;
- case SEEK_CUR:
- itell += offset;
- break;
- case SEEK_END:
- throw GeneralException("Can not yet seek from the end of a CD.");
- }
- return itell;
-}
-
-ssize_t cdreader::read(void *buf, size_t count) throw (GeneralException) {
- char sector[2352];
- size_t r = count;
-
- size_t remain = itell % 2352;
- sectorseek(itell / 2352);
-
- while (count > 0) {
- size_t n = MIN(2352 - remain, count);
- fetchsector(sector);
- bcopy(sector + remain, buf, n);
- buf = ((char *) buf) + n;
- itell += n;
- count -= n;
- remain = 0;
- }
-
- return r;
-}
-
-void cdreader::sectorseek(int sec) {
- sector = sec;
-}
-
-void cdreader::fetchsector(void * buf, int sec) {
- if (sec >= 0)
- sector = sec;
-
- if (sectors[sector]) {
- actualize(sectors[sector]);
- memcpy(buf, sectors[sector]->sector, 2352);
- return;
- }
-
- Byte buffers[2352 * nsectorsarow];
-
- getsector(buffers, sec = sector, nsectorsarow);
-
- for (int i = nsectorsarow - 1; i >= 0; i--) {
- introduce(buffers + i * 2352, sec + i);
- }
-
- memcpy(buf, buffers, 2352);
-
- while (nsectors > cachesize) {
- removetail();
- }
-}
-
-cdreader::~cdreader() {
- while (nsectors) {
- removetail();
- }
-}
-
-void cdreader::removetail() {
- if (!tail)
- return;
-
- sectors[tail->n] = 0;
-
- if (head == tail) {
- free(tail);
- head = tail = 0;
- nsectors = 0;
- } else {
- cachedsector * p;
- (p = tail->prev)->next = 0;
- free(tail);
- tail = p;
- nsectors--;
- }
-}
-
-void cdreader::actualize(cachedsector * s) {
- if (s == head)
- return;
-
- if (s != tail) {
- s->next->prev = s->prev;
- } else {
- tail = s->prev;
- }
- s->prev->next = s->next;
-
- head->prev = s;
- s->prev = 0;
- s->next = head;
- head = s;
-}
-
-void cdreader::introduce(Byte * datas, int n) {
- cachedsector * s;
-
- s = (cachedsector *) malloc(sizeof(cachedsector));
- memcpy(s->sector, datas, 2352);
- s->n = n;
-
- if (head) {
- s->next = head;
- head->prev = s;
- head = s;
- } else {
- head = tail = s;
- s->prev = s->next = 0;
- }
- sectors[n] = s;
-
- nsectors++;
-}
-
-#ifdef __linux__
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <linux/cdrom.h>
-
-cdreader::cdreader(const String & no) throw (GeneralException) :
- Handle(open(no.to_charp(), O_RDONLY)), n(no), sector(0) {
- int i;
-
-#ifdef DEBUG
- printm(M_INFO, "Opening cdrom device " + no + "\n");
-#endif
-
- if (GetHandle() < 0) {
- throw IOGeneral(String(_("Error opening file ")) + no + _(" for reading: ") + strerror(errno));
- }
-
- struct stat s;
- fstat(GetHandle(), &s);
-
- if (!S_ISBLK(s.st_mode)) {
- throw GeneralException(no + " is not a block device.");
- }
-
- for (i = 0; i < 400000; i++) {
- sectors[i] = 0;
- }
- head = tail = 0;
- nsectors = 0;
-}
-
-cdreader::cdreader(const cdreader & inp) : Handle(inp), n(inp.n) {
- int i;
-
- for (i = 0; i < 400000; i++) {
- sectors[i] = 0;
- }
- head = tail = 0;
- nsectors = 0;
-}
-
-void cdreader::getsector(void *buf, int sec, int nb) throw (GeneralException) {
- struct cdrom_msf * msf = (struct cdrom_msf *) buf;
- if (sec >= 0)
- sector = sec;
-
- sector += 150;
-
- msf->cdmsf_min0 = sector /CD_SECS /CD_FRAMES;
- msf->cdmsf_sec0 = (sector /CD_FRAMES)%CD_SECS;
- msf->cdmsf_frame0= sector %CD_FRAMES;
- msf->cdmsf_min1 = (sector + nb)/CD_SECS /CD_FRAMES;
- msf->cdmsf_sec1 = ((sector + nb)/CD_FRAMES)%CD_SECS;
- msf->cdmsf_frame1= (sector + nb)%CD_FRAMES;
-
- sector -= 150;
-
- if (ioctl(GetHandle(), CDROMREADRAW, buf) < 0) {
- throw GeneralException(String("unable to read cd sector ") + sector + ": " + strerror(errno));
- }
-
- sector += nb;
-}
-#endif
-
-#if defined (_MSC_VER) || defined (__MINGW32__)
-cdreader::cdreader(const String & no) throw (GeneralException) :
- Handle(-1), n(no), sector(0) {
- if (!(hFile = cdabstract::OpenIOCTLFile(no[0])))
- throw GeneralException("Error opening device " + no);
- for (int i = 0; i < 400000; i++) {
- sectors[i] = 0;
- }
- head = tail = 0;
- nsectors = 0;
-}
-
-cdreader::cdreader(const cdreader & i) : Handle(i), n(i.n) {
- hFile = i.hFile;
- for (int x = 0; x < 400000; x++) {
- sectors[x] = 0;
- }
- head = tail = 0;
- nsectors = 0;
-}
-
-void cdreader::close() throw (GeneralException) {
- CloseHandle(hFile);
-}
-
-typedef enum _TRACK_MODE_TYPE {
- YellowMode2,
- XAForm2,
- CDDA
-} TRACK_MODE_TYPE, *PTRACK_MODE_TYPE;
-
-typedef struct _RAW_READ_INFO {
- LARGE_INTEGER DiskOffset;
- ULONG SectorCount;
- TRACK_MODE_TYPE TrackMode;
-} RAW_READ_INFO, *PRAW_READ_INFO;
-
-void cdreader::getsector(void *buf, int sec, int nb) throw (GeneralException) {
- RAW_READ_INFO rawIOCTL;
- DWORD dwRet;
- BOOL bStat;
- bool done = false;
- if (sec >= 0)
- sector = sec;
-
- rawIOCTL.DiskOffset.QuadPart = sector * 2048;
- rawIOCTL.SectorCount = nb;
- rawIOCTL.TrackMode = YellowMode2;
-
- while (!done) {
- SetLastError(0);
- bStat = DeviceIoControl(hFile, IOCTL_CDROM_RAW_READ,
- &rawIOCTL, sizeof(RAW_READ_INFO),
- buf, 2352 * nb, &dwRet, NULL);
- if (!bStat) {
- DWORD dwErrCode = GetLastError();
- if (dwErrCode == ERROR_INVALID_FUNCTION) {
- if (rawIOCTL.TrackMode == YellowMode2) {
- rawIOCTL.TrackMode = XAForm2;
- continue;
- }
- }
- if (dwErrCode != ERROR_IO_PENDING) {
- LPVOID lpMsgBuf;
- if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
- FORMAT_MESSAGE_FROM_SYSTEM |
- FORMAT_MESSAGE_IGNORE_INSERTS,
- NULL, GetLastError(),
- MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
- (LPTSTR) &lpMsgBuf, 0, NULL ))
- throw GeneralException("Gave up on reading CD: unknown error");
- String errmsg = (LPCTSTR) lpMsgBuf;
- LocalFree(lpMsgBuf);
- throw GeneralException("Gave up on reading CD: " + errmsg);
- }
- } else {
- done = true;
- }
- }
-
- sector += nb;
-}
-
-#endif
+/*
+ * PSX-Tools Bundle Pack
+ * Copyright (C) 2002-2003 Nicolas "Pixel" Noble
+ *
+ * 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
+ */
+
+/* $Id: cdreader.cpp,v 1.20 2004-11-27 21:44:48 pixel Exp $ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "cdreader.h"
+#include "Exceptions.h"
+#include "generic.h"
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#else
+#define _(x) x
+#endif
+#include "cdabstract.h"
+
+#define nsectorsarow 1
+#define cachesize 2048
+
+bool cdreader::CanWrite() const {
+ return 0;
+}
+
+bool cdreader::CanRead() const {
+ return 1;
+}
+
+bool cdreader::CanSeek() const {
+ return 1;
+}
+
+String cdreader::GetName() const {
+ return n + " raw reading";
+}
+
+ssize_t cdreader::GetSize() const {
+ return -1;
+}
+
+off_t cdreader::seek(off_t offset, int whence) throw (GeneralException) {
+ switch (whence) {
+ case SEEK_SET:
+ itell = offset;
+ break;
+ case SEEK_CUR:
+ itell += offset;
+ break;
+ case SEEK_END:
+ throw GeneralException("Can not yet seek from the end of a CD.");
+ }
+ return itell;
+}
+
+ssize_t cdreader::read(void *buf, size_t count) throw (GeneralException) {
+ char sector[2352];
+ size_t r = count;
+
+ size_t remain = itell % 2352;
+ sectorseek(itell / 2352);
+
+ while (count > 0) {
+ size_t n = MIN(2352 - remain, count);
+ fetchsector(sector);
+ bcopy(sector + remain, buf, n);
+ buf = ((char *) buf) + n;
+ itell += n;
+ count -= n;
+ remain = 0;
+ }
+
+ return r;
+}
+
+void cdreader::sectorseek(int sec) {
+ sector = sec;
+}
+
+void cdreader::fetchsector(void * buf, int sec) {
+ if (sec >= 0)
+ sector = sec;
+
+ if (sectors[sector]) {
+ actualize(sectors[sector]);
+ memcpy(buf, sectors[sector]->sector, 2352);
+ return;
+ }
+
+ Byte buffers[2352 * nsectorsarow];
+
+ getsector(buffers, sec = sector, nsectorsarow);
+
+ for (int i = nsectorsarow - 1; i >= 0; i--) {
+ introduce(buffers + i * 2352, sec + i);
+ }
+
+ memcpy(buf, buffers, 2352);
+
+ while (nsectors > cachesize) {
+ removetail();
+ }
+}
+
+cdreader::~cdreader() {
+ while (nsectors) {
+ removetail();
+ }
+}
+
+void cdreader::removetail() {
+ if (!tail)
+ return;
+
+ sectors[tail->n] = 0;
+
+ if (head == tail) {
+ free(tail);
+ head = tail = 0;
+ nsectors = 0;
+ } else {
+ cachedsector * p;
+ (p = tail->prev)->next = 0;
+ free(tail);
+ tail = p;
+ nsectors--;
+ }
+}
+
+void cdreader::actualize(cachedsector * s) {
+ if (s == head)
+ return;
+
+ if (s != tail) {
+ s->next->prev = s->prev;
+ } else {
+ tail = s->prev;
+ }
+ s->prev->next = s->next;
+
+ head->prev = s;
+ s->prev = 0;
+ s->next = head;
+ head = s;
+}
+
+void cdreader::introduce(Byte * datas, int n) {
+ cachedsector * s;
+
+ s = (cachedsector *) malloc(sizeof(cachedsector));
+ memcpy(s->sector, datas, 2352);
+ s->n = n;
+
+ if (head) {
+ s->next = head;
+ head->prev = s;
+ head = s;
+ } else {
+ head = tail = s;
+ s->prev = s->next = 0;
+ }
+ sectors[n] = s;
+
+ nsectors++;
+}
+
+#ifdef __linux__
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <linux/cdrom.h>
+
+cdreader::cdreader(const String & no) throw (GeneralException) :
+ Handle(open(no.to_charp(), O_RDONLY)), n(no), sector(0) {
+ int i;
+
+#ifdef DEBUG
+ printm(M_INFO, "Opening cdrom device " + no + "\n");
+#endif
+
+ if (GetHandle() < 0) {
+ throw IOGeneral(String(_("Error opening file ")) + no + _(" for reading: ") + strerror(errno));
+ }
+
+ struct stat s;
+ fstat(GetHandle(), &s);
+
+ if (!S_ISBLK(s.st_mode)) {
+ throw GeneralException(no + " is not a block device.");
+ }
+
+ for (i = 0; i < 400000; i++) {
+ sectors[i] = 0;
+ }
+ head = tail = 0;
+ nsectors = 0;
+}
+
+cdreader::cdreader(const cdreader & inp) : Handle(inp), n(inp.n) {
+ int i;
+
+ for (i = 0; i < 400000; i++) {
+ sectors[i] = 0;
+ }
+ head = tail = 0;
+ nsectors = 0;
+}
+
+void cdreader::getsector(void *buf, int sec, int nb) throw (GeneralException) {
+ struct cdrom_msf * msf = (struct cdrom_msf *) buf;
+ if (sec >= 0)
+ sector = sec;
+
+ sector += 150;
+
+ msf->cdmsf_min0 = sector /CD_SECS /CD_FRAMES;
+ msf->cdmsf_sec0 = (sector /CD_FRAMES)%CD_SECS;
+ msf->cdmsf_frame0= sector %CD_FRAMES;
+ msf->cdmsf_min1 = (sector + nb)/CD_SECS /CD_FRAMES;
+ msf->cdmsf_sec1 = ((sector + nb)/CD_FRAMES)%CD_SECS;
+ msf->cdmsf_frame1= (sector + nb)%CD_FRAMES;
+
+ sector -= 150;
+
+ if (ioctl(GetHandle(), CDROMREADRAW, buf) < 0) {
+ throw GeneralException(String("unable to read cd sector ") + sector + ": " + strerror(errno));
+ }
+
+ sector += nb;
+}
+#endif
+
+#if defined (_MSC_VER) || defined (__MINGW32__)
+cdreader::cdreader(const String & no) throw (GeneralException) :
+ Handle(-1), n(no), sector(0) {
+ if (!(hFile = cdabstract::OpenIOCTLFile(no[0])))
+ throw GeneralException("Error opening device " + no);
+ for (int i = 0; i < 400000; i++) {
+ sectors[i] = 0;
+ }
+ head = tail = 0;
+ nsectors = 0;
+}
+
+cdreader::cdreader(const cdreader & i) : Handle(i), n(i.n) {
+ hFile = i.hFile;
+ for (int x = 0; x < 400000; x++) {
+ sectors[x] = 0;
+ }
+ head = tail = 0;
+ nsectors = 0;
+}
+
+void cdreader::close() throw (GeneralException) {
+ CloseHandle(hFile);
+}
+
+typedef enum _TRACK_MODE_TYPE {
+ YellowMode2,
+ XAForm2,
+ CDDA
+} TRACK_MODE_TYPE, *PTRACK_MODE_TYPE;
+
+typedef struct _RAW_READ_INFO {
+ LARGE_INTEGER DiskOffset;
+ ULONG SectorCount;
+ TRACK_MODE_TYPE TrackMode;
+} RAW_READ_INFO, *PRAW_READ_INFO;
+
+void cdreader::getsector(void *buf, int sec, int nb) throw (GeneralException) {
+ RAW_READ_INFO rawIOCTL;
+ DWORD dwRet;
+ BOOL bStat;
+ bool done = false;
+ if (sec >= 0)
+ sector = sec;
+
+ rawIOCTL.DiskOffset.QuadPart = sector * 2048;
+ rawIOCTL.SectorCount = nb;
+ rawIOCTL.TrackMode = YellowMode2;
+
+ while (!done) {
+ SetLastError(0);
+ bStat = DeviceIoControl(hFile, IOCTL_CDROM_RAW_READ,
+ &rawIOCTL, sizeof(RAW_READ_INFO),
+ buf, 2352 * nb, &dwRet, NULL);
+ if (!bStat) {
+ DWORD dwErrCode = GetLastError();
+ if (dwErrCode == ERROR_INVALID_FUNCTION) {
+ if (rawIOCTL.TrackMode == YellowMode2) {
+ rawIOCTL.TrackMode = XAForm2;
+ continue;
+ }
+ }
+ if (dwErrCode != ERROR_IO_PENDING) {
+ LPVOID lpMsgBuf;
+ if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+ FORMAT_MESSAGE_FROM_SYSTEM |
+ FORMAT_MESSAGE_IGNORE_INSERTS,
+ NULL, GetLastError(),
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
+ (LPTSTR) &lpMsgBuf, 0, NULL ))
+ throw GeneralException("Gave up on reading CD: unknown error");
+ String errmsg = (LPCTSTR) lpMsgBuf;
+ LocalFree(lpMsgBuf);
+ throw GeneralException("Gave up on reading CD: " + errmsg);
+ }
+ } else {
+ done = true;
+ }
+ }
+
+ sector += nb;
+}
+
+#endif
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