# HG changeset patch
# User Sam Lantinga <slouken@libsdl.org>
# Date 1079009981 0
# Node ID 9719e7f51a3a304371ec456c3c59311bff84b4d7
# Parent  89666943c5984a556ccdfa9b0bb8a2374d94cd27
Date: Thu, 11 Mar 2004 18:45:17 +0900
From: Hayashi Naoyuki
Subject: Re: Tru64 cdrom and pthread option fix

I wrote
/* Some CD-ROM drives cannot play the first 150 frames. */
in src/cdrom/osf/SDL_syscdrom.c
and
Some CD-ROM drives(ex. TEAC CD-532E) cannot play first 150 frames(aka gap).

but this is not right.

It is written in MMC that LBA = 4500*M + 75*S + F - 150.

diff -r 89666943c598 -r 9719e7f51a3a src/cdrom/osf/SDL_syscdrom.c
--- a/src/cdrom/osf/SDL_syscdrom.c	Sun Mar 07 16:40:15 2004 +0000
+++ b/src/cdrom/osf/SDL_syscdrom.c	Thu Mar 11 12:59:41 2004 +0000
@@ -393,13 +393,12 @@
     int end;
 
     bzero(&msf, sizeof(msf));
-    start += 150; /* Some CD-ROM drives cannot play the first 150 frames. */
     end = start +length;
-    FRAMES_TO_MSF(start,
+    FRAMES_TO_MSF(start + 150, /* LBA = 4500*M + 75*S + F - 150 */
 		  &msf.msf_starting_M_unit,
 		  &msf.msf_starting_S_unit,
 		  &msf.msf_starting_F_unit);
-    FRAMES_TO_MSF(end,
+    FRAMES_TO_MSF(end + 150, /* LBA = 4500*M + 75*S + F - 150 */
 		  &msf.msf_ending_M_unit,
 		  &msf.msf_ending_S_unit,
 		  &msf.msf_ending_F_unit);
@@ -449,3 +448,4 @@
     }
 }
 
+