Added initial support for Dreamcast (thanks HERO!)

--HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40510
2002-10-05 16:50:56 +00:00 · 2002-10-05 16:50:56 +00:00 · 3ee2de057f
commit 3ee2de057f
parent 148a1a64f4
43 changed files with 2847 additions and 4 deletions
--- a/src/cdrom/dc/SDL_syscdrom.c
+++ b/src/cdrom/dc/SDL_syscdrom.c
@ -0,0 +1,176 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    BERO
+    bero@geocities.co.jp
+
+    based on win32/SDL_syscdrom.c by
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+/* Functions for system-level CD-ROM audio control */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <dc/cdrom.h>
+#include <dc/spu.h>
+
+#include "SDL_error.h"
+#include "SDL_cdrom.h"
+#include "SDL_syscdrom.h"
+
+/* The system-dependent CD control functions */
+static const char *SDL_SYS_CDName(int drive);
+static int SDL_SYS_CDOpen(int drive);
+static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
+static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
+static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
+static int SDL_SYS_CDPause(SDL_CD *cdrom);
+static int SDL_SYS_CDResume(SDL_CD *cdrom);
+static int SDL_SYS_CDStop(SDL_CD *cdrom);
+static int SDL_SYS_CDEject(SDL_CD *cdrom);
+static void SDL_SYS_CDClose(SDL_CD *cdrom);
+
+
+int  SDL_SYS_CDInit(void)
+{
+	/* Fill in our driver capabilities */
+	SDL_CDcaps.Name = SDL_SYS_CDName;
+	SDL_CDcaps.Open = SDL_SYS_CDOpen;
+	SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
+	SDL_CDcaps.Status = SDL_SYS_CDStatus;
+	SDL_CDcaps.Play = SDL_SYS_CDPlay;
+	SDL_CDcaps.Pause = SDL_SYS_CDPause;
+	SDL_CDcaps.Resume = SDL_SYS_CDResume;
+	SDL_CDcaps.Stop = SDL_SYS_CDStop;
+	SDL_CDcaps.Eject = SDL_SYS_CDEject;
+	SDL_CDcaps.Close = SDL_SYS_CDClose;
+
+	return(0);
+}
+
+static const char *SDL_SYS_CDName(int drive)
+{
+	return "/cd";
+}
+
+static int SDL_SYS_CDOpen(int drive)
+{
+	return(drive);
+}
+
+#define	TRACK_CDDA	0
+static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
+{
+	CDROM_TOC toc;
+	int ret,i;
+
+	ret = cdrom_read_toc(&toc,0);
+	if (ret!=ERR_OK) {
+		return -1;
+	}
+
+	cdrom->numtracks = TOC_TRACK(toc.last)-TOC_TRACK(toc.first)+1;
+	for(i=0;i<cdrom->numtracks;i++) {
+		unsigned long entry = toc.entry[i];
+		cdrom->track[i].id = i+1;
+		cdrom->track[i].type = (TOC_CTRL(toc.entry[i])==TRACK_CDDA)?SDL_AUDIO_TRACK:SDL_DATA_TRACK;
+		cdrom->track[i].offset = TOC_LBA(entry)-150;
+		cdrom->track[i].length = TOC_LBA((i+1<toc.last)?toc.entry[i+1]:toc.dunno)-TOC_LBA(entry);
+	}
+
+	return 0;
+}
+
+/* Get CD-ROM status */
+static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
+{
+	CDstatus status;
+	int ret,dc_status,disc_type;
+
+	ret = cdrom_get_status(&dc_status,&disc_type);
+	if (ret!=ERR_OK) return CD_ERROR;
+
+	switch(dc_status) {
+//	case CD_STATUS_BUSY:
+	case CD_STATUS_PAUSED:
+		return CD_PAUSED;
+	case CD_STATUS_STANDBY:
+		return CD_STOPPED;
+	case CD_STATUS_PLAYING:
+		return CD_PLAYING;
+//	case CD_STATUS_SEEKING:
+//	case CD_STATUS_SCANING:
+	case CD_STATUS_OPEN:
+	case CD_STATUS_NO_DISC:
+		return CD_TRAYEMPTY;
+	default:
+		return	CD_ERROR;
+	}
+}
+
+/* Start play */
+static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
+{
+	int ret = cdrom_cdda_play(start-150,start-150+length,1,CDDA_SECTORS);
+	return ret==ERR_OK?0:-1;
+}
+
+/* Pause play */
+static int SDL_SYS_CDPause(SDL_CD *cdrom)
+{
+	int ret=cdrom_cdda_pause();
+	return ret==ERR_OK?0:-1;
+}
+
+/* Resume play */
+static int SDL_SYS_CDResume(SDL_CD *cdrom)
+{
+	int ret=cdrom_cdda_resume();
+	return ret==ERR_OK?0:-1;
+}
+
+/* Stop play */
+static int SDL_SYS_CDStop(SDL_CD *cdrom)
+{
+	int ret=cdrom_spin_down();
+	return ret==ERR_OK?0:-1;
+}
+
+/* Eject the CD-ROM */
+static int SDL_SYS_CDEject(SDL_CD *cdrom)
+{
+	return -1;
+}
+
+/* Close the CD-ROM handle */
+static void SDL_SYS_CDClose(SDL_CD *cdrom)
+{
+}
+
+void SDL_SYS_CDQuit(void)
+{
+
+}