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-rw-r--r--engines/cge/cfile.cpp441
1 files changed, 173 insertions, 268 deletions
diff --git a/engines/cge/cfile.cpp b/engines/cge/cfile.cpp
index fdbd6ad315..7c4f689e30 100644
--- a/engines/cge/cfile.cpp
+++ b/engines/cge/cfile.cpp
@@ -25,334 +25,239 @@
* Copyright (c) 1994-1995 Janus B. Wisniewski and L.K. Avalon
*/
-#include "cge/cfile.h"
-#include <dos.h>
-#include <fcntl.h>
-#include <string.h>
+#include "cge/cfile.h"
+#include <dos.h>
+#include <fcntl.h>
+#include <string.h>
#include "common/system.h"
namespace CGE {
-IOBUF::IOBUF (IOMODE mode, CRYPT * crpt)
-: IOHAND(mode, crpt),
- BufMark(0),
- Ptr(0),
- Lim(0)
-{
- Buff = farnew(uint8, IOBUF_SIZE);
- if (Buff == NULL)
- error("No core for I/O");
+IOBUF::IOBUF(IOMODE mode, CRYPT *crpt)
+ : IOHAND(mode, crpt),
+ BufMark(0),
+ Ptr(0),
+ Lim(0) {
+ Buff = farnew(uint8, IOBUF_SIZE);
+ if (Buff == NULL)
+ error("No core for I/O");
}
-
-
-
-
-
-
-
-IOBUF::IOBUF (const char * name, IOMODE mode, CRYPT * crpt)
-: IOHAND(name, mode, crpt),
- BufMark(0),
- Ptr(0),
- Lim(0)
-{
- Buff = farnew(uint8, IOBUF_SIZE);
- if (Buff == NULL)
- error("No core for I/O [%s]", name);
+IOBUF::IOBUF(const char *name, IOMODE mode, CRYPT *crpt)
+ : IOHAND(name, mode, crpt),
+ BufMark(0),
+ Ptr(0),
+ Lim(0) {
+ Buff = farnew(uint8, IOBUF_SIZE);
+ if (Buff == NULL)
+ error("No core for I/O [%s]", name);
}
-
-
-
-
-
-
-
-
-IOBUF::~IOBUF (void)
-{
- if (Mode > REA) WriteBuff();
- if (Buff) free(Buff);
+IOBUF::~IOBUF(void) {
+ if (Mode > REA)
+ WriteBuff();
+ if (Buff)
+ free(Buff);
}
-
-
-
-
-void IOBUF::ReadBuff (void)
-{
- BufMark = IOHAND::Mark();
- Lim = IOHAND::Read(Buff, IOBUF_SIZE);
- Ptr = 0;
+void IOBUF::ReadBuff(void) {
+ BufMark = IOHAND::Mark();
+ Lim = IOHAND::Read(Buff, IOBUF_SIZE);
+ Ptr = 0;
}
-
-
-
-void IOBUF::WriteBuff (void)
-{
- if (Lim)
- {
- IOHAND::Write(Buff, Lim);
- BufMark = IOHAND::Mark();
- Lim = 0;
- }
+void IOBUF::WriteBuff(void) {
+ if (Lim) {
+ IOHAND::Write(Buff, Lim);
+ BufMark = IOHAND::Mark();
+ Lim = 0;
+ }
}
-
-
-
-uint16 IOBUF::Read (void *buf, uint16 len)
-{
- uint16 total = 0;
- while (len)
- {
- if (Ptr >= Lim) ReadBuff();
- uint16 n = Lim - Ptr;
- if (n)
- {
- if (len < n) n = len;
- memcpy(buf, Buff+Ptr, n);
- buf = (uint8 *)buf + n;
- len -= n;
- total += n;
- Ptr += n;
+uint16 IOBUF::Read(void *buf, uint16 len) {
+ uint16 total = 0;
+ while (len) {
+ if (Ptr >= Lim)
+ ReadBuff();
+ uint16 n = Lim - Ptr;
+ if (n) {
+ if (len < n)
+ n = len;
+ memcpy(buf, Buff + Ptr, n);
+ buf = (uint8 *)buf + n;
+ len -= n;
+ total += n;
+ Ptr += n;
+ } else
+ break;
}
- else break;
- }
- return total;
+ return total;
}
-
-
-
-
-uint16 IOBUF::Read (uint8 * buf)
-{
- uint16 total = 0;
-
- while (total < LINE_MAX-2)
- {
- if (Ptr >= Lim) ReadBuff();
- uint8 * p = Buff + Ptr;
- uint16 n = Lim - Ptr;
- if (n)
- {
- if (total + n >= LINE_MAX-2) n = LINE_MAX-2 - total;
- uint8 * eol = (uint8 *) memchr(p, '\r', n);
- if (eol) n = (uint16) (eol - p);
- uint8 * eof = (uint8 *) memchr(p, '\32', n);
- if (eof) // end-of-file
- {
- n = (uint16) (eof - p);
- Ptr = (uint16) (eof - Buff);
- }
- if (n) memcpy(buf, p, n);
- buf += n;
- total += n;
- if (eof) break;
- Ptr += n;
- if (eol)
- {
- ++ Ptr;
- * (buf ++) = '\n';
- ++ total;
- if (Ptr >= Lim) ReadBuff();
- if (Ptr < Lim) if (Buff[Ptr] == '\n') ++ Ptr;
- break;
- }
+uint16 IOBUF::Read(uint8 *buf) {
+ uint16 total = 0;
+
+ while (total < LINE_MAX - 2) {
+ if (Ptr >= Lim)
+ ReadBuff();
+ uint8 *p = Buff + Ptr;
+ uint16 n = Lim - Ptr;
+ if (n) {
+ if (total + n >= LINE_MAX - 2)
+ n = LINE_MAX - 2 - total;
+ uint8 *eol = (uint8 *) memchr(p, '\r', n);
+ if (eol)
+ n = (uint16)(eol - p);
+ uint8 *eof = (uint8 *) memchr(p, '\32', n);
+ if (eof) { // end-of-file
+ n = (uint16)(eof - p);
+ Ptr = (uint16)(eof - Buff);
+ }
+ if (n)
+ memcpy(buf, p, n);
+ buf += n;
+ total += n;
+ if (eof)
+ break;
+ Ptr += n;
+ if (eol) {
+ ++ Ptr;
+ * (buf ++) = '\n';
+ ++ total;
+ if (Ptr >= Lim)
+ ReadBuff();
+ if (Ptr < Lim)
+ if (Buff[Ptr] == '\n')
+ ++Ptr;
+ break;
+ }
+ } else
+ break;
}
- else break;
- }
- *buf = '\0';
- return total;
+ *buf = '\0';
+ return total;
}
-
-
-
-
-
-uint16 IOBUF::Write (void * buf, uint16 len)
-{
- uint16 tot = 0;
- while (len)
- {
- uint16 n = IOBUF_SIZE - Lim;
- if (n > len) n = len;
- if (n)
- {
- memcpy(Buff+Lim, buf, n);
- Lim += n;
- len -= n;
- buf = (uint8 *)buf + n;
- tot += n;
+uint16 IOBUF::Write(void *buf, uint16 len) {
+ uint16 tot = 0;
+ while (len) {
+ uint16 n = IOBUF_SIZE - Lim;
+ if (n > len)
+ n = len;
+ if (n) {
+ memcpy(Buff + Lim, buf, n);
+ Lim += n;
+ len -= n;
+ buf = (uint8 *)buf + n;
+ tot += n;
+ } else
+ WriteBuff();
}
- else WriteBuff();
- }
- return tot;
+ return tot;
}
-
-
-
-
-uint16 IOBUF::Write (uint8 * buf)
-{
- uint16 len = 0;
- if (buf)
- {
- len = strlen((const char *) buf);
- if (len) if (buf[len-1] == '\n') -- len;
- len = Write(buf, len);
- if (len)
- {
- static char EOL[] = "\r\n";
- uint16 n = Write(EOL, sizeof(EOL)-1);
- len += n;
+uint16 IOBUF::Write(uint8 *buf) {
+ uint16 len = 0;
+ if (buf) {
+ len = strlen((const char *) buf);
+ if (len)
+ if (buf[len - 1] == '\n')
+ --len;
+ len = Write(buf, len);
+ if (len) {
+ static char EOL[] = "\r\n";
+ uint16 n = Write(EOL, sizeof(EOL) - 1);
+ len += n;
+ }
}
- }
- return len;
+ return len;
}
-
-
-
-
-int IOBUF::Read (void)
-{
- if (Ptr >= Lim)
- {
- ReadBuff();
- if (Lim == 0) return -1;
- }
- return Buff[Ptr ++];
+int IOBUF::Read(void) {
+ if (Ptr >= Lim) {
+ ReadBuff();
+ if (Lim == 0)
+ return -1;
+ }
+ return Buff[Ptr ++];
}
-
-
-
-
-void IOBUF::Write (uint8 b)
-{
- if (Lim >= IOBUF_SIZE)
- {
- WriteBuff();
- }
- Buff[Lim ++] = b;
+void IOBUF::Write(uint8 b) {
+ if (Lim >= IOBUF_SIZE)
+ WriteBuff();
+ Buff[Lim ++] = b;
}
+uint16 CFILE::MaxLineLen = LINE_MAX;
-
-
- uint16 CFILE::MaxLineLen = LINE_MAX;
-
-
-
-
-
-
-
-
-CFILE::CFILE (const char * name, IOMODE mode, CRYPT * crpt)
-: IOBUF(name, mode, crpt)
-{
+CFILE::CFILE(const char *name, IOMODE mode, CRYPT *crpt)
+ : IOBUF(name, mode, crpt) {
}
-
-
-
-
-
-
-
-CFILE::~CFILE (void)
-{
+CFILE::~CFILE(void) {
}
+void CFILE::Flush(void) {
+ if (Mode > REA)
+ WriteBuff();
+ else
+ Lim = 0;
-
-
-
-void CFILE::Flush (void)
-{
- if (Mode > REA) WriteBuff();
- else Lim = 0;
-
- /*
- _BX = Handle;
- _AH = 0x68; // Flush buffer
- asm int 0x21
- */
- warning("FIXME: CFILE::Flush");
+ /*
+ _BX = Handle;
+ _AH = 0x68; // Flush buffer
+ asm int 0x21
+ */
+ warning("FIXME: CFILE::Flush");
}
-
-
-
-long CFILE::Mark (void)
-{
- return BufMark + ((Mode > REA) ? Lim : Ptr);
+long CFILE::Mark(void) {
+ return BufMark + ((Mode > REA) ? Lim : Ptr);
}
-
-
-
-long CFILE::Seek (long pos)
-{
- if (pos >= BufMark && pos < BufMark + Lim)
- {
- ((Mode == REA) ? Ptr : Lim) = (uint16) (pos - BufMark);
- return pos;
- }
- else
- {
- if (Mode > REA)
- {
- WriteBuff();
+long CFILE::Seek(long pos) {
+ if (pos >= BufMark && pos < BufMark + Lim) {
+ ((Mode == REA) ? Ptr : Lim) = (uint16)(pos - BufMark);
+ return pos;
+ } else {
+ if (Mode > REA)
+ WriteBuff();
+ else
+ Lim = 0;
+
+ Ptr = 0;
+ return BufMark = IOHAND::Seek(pos);
}
- else
- {
- Lim = 0;
- }
- Ptr = 0;
- return BufMark = IOHAND::Seek(pos);
- }
}
-
-
-
-
-void CFILE::Append (CFILE& f)
-{
- Seek(Size());
- if (f.Error == 0)
- {
- while (true)
- {
- if ((Lim = f.IOHAND::Read(Buff, IOBUF_SIZE)) == IOBUF_SIZE) WriteBuff();
- else break;
- if ((Error = f.Error) != 0) break;
+void CFILE::Append(CFILE &f) {
+ Seek(Size());
+ if (f.Error == 0) {
+ while (true) {
+ if ((Lim = f.IOHAND::Read(Buff, IOBUF_SIZE)) == IOBUF_SIZE)
+ WriteBuff();
+ else
+ break;
+ if ((Error = f.Error) != 0)
+ break;
+ }
}
- }
}
} // End of namespace CGE
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