Implement inserting blank media into drive.

src/cdrom/cdrom.c

@@ -12,6 +12,7 @@
  *
  *          Copyright 2018-2021 Miran Grca.
  */
+
 #include <inttypes.h>
 #ifdef ENABLE_CDROM_LOG
 #include <stdarg.h>
@@ -26,6 +27,7 @@
 #include <86box/config.h>
 #include <86box/cdrom.h>
 #include <86box/cdrom_image.h>
+#include <86box/cdrom_image_writable.h>
 #include <86box/cdrom_interface.h>
 #ifdef USE_CDROM_MITSUMI
 #include <86box/cdrom_mitsumi.h>
@@ -2996,6 +2998,36 @@ cdrom_update_status(cdrom_t *dev)
     }
 }
 
+int
+cdrom_insert_blank(cdrom_t *dev, const char *fn)
+{
+    int ret = 0;
+
+    // Create new image
+    dev->local = wimage_open(dev, dev->image_path);
+
+    // Clear cached sectors
+    dev->cached_sector = -1;
+
+    // If new image could not be created
+    if (dev->local == NULL) {
+        dev->ops = NULL;
+        dev->image_path[0] = 0;
+
+        ret = 1;
+    } else {
+        // All looking good, reset state
+        dev->seek_pos = 0;
+        dev->cd_buflen = 0;
+        dev->cd_status = CD_STATUS_BLANK_CDR;
+        dev->cdrom_capacity = 0;
+        cdrom_log(dev->log, "Blank CD-R created\n");
+        cdrom_insert(dev->id);
+    }
+
+    return ret;
+}
+
 int
 cdrom_load(cdrom_t *dev, const char *fn, const int skip_insert)
 {
@@ -3188,15 +3220,6 @@ 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)
 {