Update of /cvsroot/lapetus/lapetus
In directory sc8-pr-cvs6.sourceforge.net:/tmp/cvs-serv7096
Added Files:
mpeg.c
Log Message:
-Some MPEG stuff I wrote ages ago that I didn't commit
--- NEW FILE: mpeg.c ---
/* Copyright 2006-2007 Theo Berkau
This file is part of Lapetus.
Lapetus 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.
Lapetus 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 Lapetus; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "lapetus.h"
//////////////////////////////////////////////////////////////////////////////
BOOL IsMPEGAuth()
{
cdcmd_struct cdcmd;
cdcmd_struct cdcmdrs;
cdcmd.CR1 = 0xE100;
cdcmd.CR2 = 0x0001;
cdcmd.CR3 = 0x0000;
cdcmd.CR4 = 0x0000;
// If command fails, assume it's not authenticated
if (CDExecCommand(0, &cdcmd, &cdcmdrs) != LAPETUS_ERR_OK)
return FALSE;
// Disc type Authenticated:
// 0x00: No MPEG Card/Not Authenticated
// 0x02: Some kind of MPEG card
if (cdcmdrs.CR2 != 0x022)
return FALSE;
return TRUE;
}
//////////////////////////////////////////////////////////////////////////////
int MPEGAuth()
{
int ret;
cdcmd_struct cdcmd;
cdcmd_struct cdcmdrs;
u16 auth;
// Clear hirq flags
CDB_REG_HIRQ = ~(HIRQ_MPED);
// Authenticate disc
cdcmd.CR1 = 0xE000;
cdcmd.CR2 = 0x0001;
cdcmd.CR3 = 0x0000;
cdcmd.CR4 = 0x0000;
if ((ret = CDExecCommand(HIRQ_EFLS, &cdcmd, &cdcmdrs)) != LAPETUS_ERR_OK)
return ret;
// wait till operation is finished
while (!(CDB_REG_HIRQ & HIRQ_MPED)) {}
// Was Authentication successful?
if (!IsMPEGAuth(&auth))
return -1;
return LAPETUS_ERR_OK;
}
//////////////////////////////////////////////////////////////////////////////
int MPEGInit ()
{
int ret;
cdcmd_struct cdcmd;
cdcmd_struct cdcmdrs;
screensettings_struct settings;
// Make sure MPEG card is authenticated
if (!IsMPEGAuth())
MPEGAuth();
// Now Initialize MPEG card
cdcmd.CR1 = 0x9300;
cdcmd.CR2 = 0x0001; // might have to change this
cdcmd.CR3 = 0x0000;
cdcmd.CR4 = 0x0000;
if ((ret = CDExecCommand(HIRQ_MPED, &cdcmd, &cdcmdrs)) != LAPETUS_ERR_OK)
return ret;
// Do a MPEG Set Mode here
// Get MPEG stats here
// Get MPEG Connection here
// Enable the external audio through SCSP
SoundExternalAudioEnable(7, 7);
// Setup NBG1 as EXBG
settings.isbitmap = TRUE;
settings.bitmapsize = BG_BITMAP512x256;
settings.transparentbit = 0;
settings.color = BG_32786COLOR;
settings.specialpriority = 0;
settings.specialcolorcalc = 0;
settings.extrapalettenum = 0;
settings.mapoffset = 0;
return VdpEXBGInit(&settings);
}
//////////////////////////////////////////////////////////////////////////////
int MpegPlay(file_struct *file)
{
// Setup CD filters here
// Setup MPEG connections here
// Start CD transfer here
// Start MPEG decoding here
return LAPETUS_ERR_OK;
}
//////////////////////////////////////////////////////////////////////////////
int MpegPause(file_struct *file)
{
return LAPETUS_ERR_OK;
}
//////////////////////////////////////////////////////////////////////////////
int MpegStop(file_struct *file)
{
return LAPETUS_ERR_OK;
}
//////////////////////////////////////////////////////////////////////////////
|
