From 1df403c52368a3930b67dedabf8c0e1d522f1cc3 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Tue, 8 Feb 2011 18:21:17 +0200
Subject: [PATCH] add cd swap functionality

---
 frontend/menu.c       | 38 ++++++++++++++++++++++++++++++++++++++
 libpcsxcore/cdrom.h   |  1 +
 libpcsxcore/plugins.c | 17 +++++++++++++++++
 libpcsxcore/plugins.h |  3 ++-
 4 files changed, 58 insertions(+), 1 deletion(-)

diff --git a/frontend/menu.c b/frontend/menu.c
index 77629059..20d334c1 100644
--- a/frontend/menu.c
+++ b/frontend/menu.c
@@ -22,6 +22,7 @@
 #include "omap.h"
 #include "common/plat.h"
 #include "../libpcsxcore/misc.h"
+#include "../libpcsxcore/cdrom.h"
 #include "../libpcsxcore/psemu_plugin_defs.h"
 #include "revision.h"
 
@@ -36,6 +37,7 @@ typedef enum
 	MA_MAIN_LOAD_STATE,
 	MA_MAIN_RESET_GAME,
 	MA_MAIN_LOAD_ROM,
+	MA_MAIN_SWAP_CD,
 	MA_MAIN_RUN_BIOS,
 	MA_MAIN_CONTROLS,
 	MA_MAIN_CREDITS,
@@ -1335,6 +1337,36 @@ static int romsel_run(void)
 	return 0;
 }
 
+static int swap_cd_image(void)
+{
+	char *fname;
+
+	fname = menu_loop_romsel(last_selected_fname, sizeof(last_selected_fname));
+	if (fname == NULL)
+		return -1;
+
+	printf("selected file: %s\n", fname);
+
+	CdromId[0] = '\0';
+	CdromLabel[0] = '\0';
+
+	set_cd_image(fname);
+	if (ReloadCdromPlugin() < 0) {
+		me_update_msg("failed to load cdr plugin");
+		return -1;
+	}
+	if (CDR_open() < 0) {
+		me_update_msg("failed to open cdr plugin");
+		return -1;
+	}
+
+	SetCdOpenCaseTime(time(NULL) + 2);
+	LidInterrupt();
+
+	strcpy(last_selected_fname, rom_fname_reload);
+	return 0;
+}
+
 static int main_menu_handler(int id, int keys)
 {
 	switch (id)
@@ -1359,6 +1391,10 @@ static int main_menu_handler(int id, int keys)
 		if (romsel_run() == 0)
 			return 1;
 		break;
+	case MA_MAIN_SWAP_CD:
+		if (swap_cd_image() == 0)
+			return 1;
+		break;
 	case MA_MAIN_RUN_BIOS:
 		if (run_bios() == 0)
 			return 1;
@@ -1387,6 +1423,7 @@ static menu_entry e_menu_main[] =
 	mee_handler_id("Load State",         MA_MAIN_LOAD_STATE,  main_menu_handler),
 	mee_handler_id("Reset game",         MA_MAIN_RESET_GAME,  main_menu_handler),
 	mee_handler_id("Load CD image",      MA_MAIN_LOAD_ROM,    main_menu_handler),
+	mee_handler_id("Change CD image",    MA_MAIN_SWAP_CD,     main_menu_handler),
 	mee_handler_id("Run BIOS",           MA_MAIN_RUN_BIOS,    main_menu_handler),
 	mee_handler   ("Options",            menu_loop_options),
 	mee_handler   ("Controls",           menu_loop_keyconfig),
@@ -1409,6 +1446,7 @@ void menu_loop(void)
 	me_enable(e_menu_main, MA_MAIN_SAVE_STATE,  ready_to_go && CdromId[0]);
 	me_enable(e_menu_main, MA_MAIN_LOAD_STATE,  ready_to_go && CdromId[0]);
 	me_enable(e_menu_main, MA_MAIN_RESET_GAME,  ready_to_go);
+	me_enable(e_menu_main, MA_MAIN_SWAP_CD,  ready_to_go);
 	me_enable(e_menu_main, MA_MAIN_RUN_BIOS, bios_sel != 0);
 
 	in_set_config_int(0, IN_CFG_BLOCKING, 1);
diff --git a/libpcsxcore/cdrom.h b/libpcsxcore/cdrom.h
index 90523c30..1f70ff36 100644
--- a/libpcsxcore/cdrom.h
+++ b/libpcsxcore/cdrom.h
@@ -108,6 +108,7 @@ void cdrRepplayInterrupt();
 void cdrLidSeekInterrupt();
 void cdrPlayInterrupt();
 void cdrDmaInterrupt();
+void LidInterrupt();
 unsigned char cdrRead0(void);
 unsigned char cdrRead1(void);
 unsigned char cdrRead2(void);
diff --git a/libpcsxcore/plugins.c b/libpcsxcore/plugins.c
index f965e0d0..57e7ef2d 100644
--- a/libpcsxcore/plugins.c
+++ b/libpcsxcore/plugins.c
@@ -794,6 +794,23 @@ void ReleasePlugins() {
 #endif
 }
 
+// for CD swap
+int ReloadCdromPlugin()
+{
+	if (hCDRDriver != NULL || cdrIsoActive()) CDR_shutdown();
+	if (hCDRDriver != NULL) SysCloseLibrary(hCDRDriver); hCDRDriver = NULL;
+
+	if (UsingIso()) {
+		LoadCDRplugin(NULL);
+	} else {
+		char Plugin[MAXPATHLEN];
+		sprintf(Plugin, "%s/%s", Config.PluginsDir, Config.Cdr);
+		if (LoadCDRplugin(Plugin) == -1) return -1;
+	}
+
+	return CDR_init();
+}
+
 void SetIsoFile(const char *filename) {
 	if (filename == NULL) {
 		IsoFile[0] = '\0';
diff --git a/libpcsxcore/plugins.h b/libpcsxcore/plugins.h
index 9c24ecef..8084143a 100644
--- a/libpcsxcore/plugins.h
+++ b/libpcsxcore/plugins.h
@@ -60,6 +60,7 @@ int LoadPlugins();
 void ReleasePlugins();
 int OpenPlugins();
 void ClosePlugins();
+int ReloadCdromPlugin();
 
 typedef unsigned long (CALLBACK* PSEgetLibType)(void);
 typedef unsigned long (CALLBACK* PSEgetLibVersion)(void);
@@ -150,7 +151,7 @@ struct SubQ {
 	unsigned char IndexNumber;
 	unsigned char TrackRelativeAddress[3];
 	unsigned char Filler;
-	unsigned char AbsoluteAddress[3];
+	unsigned char AbsoluteAddress[3];
 	unsigned char CRC[2];
 	char res1[72];
 };
-- 
2.39.5