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Remove MCI, DX, and DIO CD-ROM interfaces

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Also, remove all traces of these interfaces from user manual (README
file) and man page (docs/dosbox.1).

MCI (Media Control Interface) was a primary Windows interface. Code
comments and documentation claimed, that it's only for "NT, 2000, XP"
but the code was enabled for Windows 2000 or later (version > 4.0).

DX (Digital audio eXtraction (?)) could be forced on any Windows with
autodetection working only on Vista and Windows 7 (code was disabled for
Windows 8 or later - probably unintentionally).

DIO used DeviceIoControl interface and Windows-specific ioctl calls.

All 3 interfaces depend on SDL and SDL_cdrom functionality to work.
SDL_cdrom 1.2 implementation uses MCI on Windows to provide the same
functionality.
This commit is contained in:
Patryk Obara 2019-12-10 19:39:00 +01:00 • committed by Patryk Obara
parent ba88bd97d7
commit ddda555854
10 changed files with 15 additions and 1136 deletions
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8
docs/dosbox.1
View file

@ -1,5 +1,5 @@
.\" Hey, EMACS: -*- nroff -*-
.TH DOSBOX 1 "Nov 29, 2019"
.TH DOSBOX 1 "Dec 1, 2019"
.\" Please adjust this date whenever revising the manpage.
.SH NAME
dosbox \- an x86/DOS emulator with sound/graphics
@ -132,7 +132,6 @@ following extra commands are available:
.HP
.BI "MOUNT [\-t " type "] [\-size " size ]
.I driveletter sourcedirectory
.B [\-ioctl]
.BI "[\-usecd " number "] [\-label " drivelabel "] [\-freesize " freesize ]
.LP
.B MOUNT \-cd
@ -162,7 +161,7 @@ Sets the amount of free space available on a drive in MB's. This is a more
.RI "Sets the name of the drive to " drivelabel ". Needed on some"
systems if the cd label isn't read correctly. Useful when a
program can't find its cdrom. If you don't specify a label and no
.RB "lowlevel support is selected (" "\-usecd #" " and/or " "\-ioctl" "):"
.RB "lowlevel support is selected (" "\-usecd #" "):"
.RS
.LP
For win32: label is extracted from "Real Drive".
@ -173,9 +172,6 @@ If you do specify a label this label will be kept as long as the drive
is mounted. It will not be updated !!
.RE
.TP
.B \-ioctl
Forces to use ioctl commands.
.TP
.BI \-usecd " number"
Forces to use SDL cdrom support for drive number.
.IR Number " can be found by "