Add dummy UI option to add blank media to Yamaha drive.

src/cdrom/cdrom.c

@@ -3188,6 +3188,15 @@ cdrom_insert(const uint8_t id)
         dev->insert(dev->priv);
 }
 
+void
+cdrom_insert_blank(const uint8_t id)
+{
+    const cdrom_t *dev = &cdrom[id];
+
+    if (dev->bus_type && dev->insert_blank)
+        dev->insert_blank(dev->priv);
+}
+
 void
 cdrom_exit(const uint8_t id)
 {

src/include/86box/cdrom.h

@@ -344,6 +344,7 @@ typedef struct cdrom {
 
     void               (*insert)(void *priv);
     void               (*close)(void *priv);
+    void               (*insert_blank)(void *priv);
     uint32_t           (*get_volume)(void *p, int channel);
     uint32_t           (*get_channel)(void *p, int channel);
 
@@ -474,6 +475,7 @@ extern void            cdrom_exit(const uint8_t id);
 extern int             cdrom_is_empty(const uint8_t id);
 extern void            cdrom_eject(const uint8_t id);
 extern void            cdrom_reload(const uint8_t id);
+extern void            cdrom_insert_blank(const uint8_t id);
 
 extern void            cdrom_compute_ecc_block(cdrom_t *dev, uint8_t *parity, const uint8_t *data,
                                                uint32_t major_count, uint32_t minor_count,

src/qt/qt_mediamenu.cpp

@@ -162,6 +162,9 @@ MediaMenu::refresh(QMenu *parentMenu)
         cdromMutePos = menu->children().count();
         menu->addAction(QIcon(":/settings/qt/icons/cdrom_mute.ico"), tr("&Mute"), [this, i]() { cdromMute(i); })->setCheckable(true);
         menu->addSeparator();
+        // Can make it only appear if the drive is a Yamaha?
+        menu->addAction(tr("Add &blank disc"), [this, i]() { cdromInsertBlank(i); })->setCheckable(false);
+        menu->addSeparator();
         menu->addAction(getIconWithIndicator(QIcon(":/settings/qt/icons/cdrom_image.ico"), pixmap_size, QIcon::Normal, Browse), tr("&Image..."), [this, i]() { cdromMount(i, 0, nullptr); })->setCheckable(false);
         menu->addAction(getIconWithIndicator(QIcon(":/settings/qt/icons/cdrom_folder.ico"), pixmap_size, QIcon::Normal, Browse), tr("&Folder..."), [this, i]() { cdromMount(i, 1, nullptr); })->setCheckable(false);
         menu->addSeparator();
@@ -608,6 +611,21 @@ MediaMenu::cdromMount(int i, int dir, const QString &arg)
     cdromMount(i, filename);
 }
 
+void
+MediaMenu::cdromInsertBlank(int i)
+{
+    // Check if drive is empty
+    if (!cdrom_is_empty(i)) {
+        QMessageBox::information(parentWidget, tr("Drive not empty"), tr("The drive must be empty to add a blank disc."));
+        return;
+    }
+
+    // Add a blank disc
+    cdrom_insert_blank(i);
+
+    ui_sb_update_icon_state(SB_CDROM | i, 1);
+}
+
 void
 MediaMenu::cdromEject(int i)
 {

src/qt/qt_mediamenu.hpp

@@ -45,6 +45,7 @@ public:
     void cdromMute(int i);
     void cdromMount(int i, int dir, const QString &arg);
     void cdromMount(int i, const QString &filename);
+    void cdromInsertBlank(int i);
     void cdromEject(int i);
     void cdromReload(int index, int slot);
     void updateImageHistory(int index, int slot, ui::MediaType type);

src/scsi/scsi_cdrom.c

@@ -1232,6 +1232,17 @@ scsi_cdrom_insert(void *priv)
     }
 }
 
+static void
+scsi_cdrom_insert_blank(void *priv)
+{
+    scsi_cdrom_t *dev = (scsi_cdrom_t *) priv;
+
+    if ((dev == NULL) /*|| (dev->drv == NULL)*/)
+        return;
+
+    scsi_cdrom_log(dev->log, "Inserting blank disc\n");
+}
+
 static int
 scsi_command_check_ready(const scsi_cdrom_t *dev, const uint8_t *cdb)
 {
@@ -3988,6 +3999,7 @@ scsi_cdrom_drive_reset(const int c)
     drv->get_volume    = scsi_cdrom_get_volume;
     drv->get_channel   = scsi_cdrom_get_channel;
     drv->close         = scsi_cdrom_close;
+    drv->insert_blank     = scsi_cdrom_insert_blank;
 
     drv->sector_size = 2048;
     (void) scsi_cdrom_update_sector_flags(dev);