Show sizes for virtual drives

source/fs/fsdrive.c

@@ -194,7 +194,8 @@ uint64_t GetFreeSpace(const char* path)
 uint64_t GetTotalSpace(const char* path)
 {
     FATFS* fsobj = GetMountedFSObject(path);
-    return (fsobj) ? ((uint64_t) (fsobj->n_fatent - 2) * fsobj->csize * _MAX_SS) : 0;
+    return (fsobj) ? ((uint64_t) (fsobj->n_fatent - 2) * fsobj->csize * _MAX_SS) :
+        GetVirtualDriveSize(path);
 }
 
 uint64_t GetPartitionOffsetSector(const char* path)

source/virtual/vcart.c

@@ -44,3 +44,7 @@ int ReadVCartFile(const VirtualFile* vfile, u8* buffer, u32 offset, u32 count) {
         return ReadCartPrivateHeader(buffer, offset, count, cdata);
     else return ReadCartBytes(buffer, offset, count, cdata);
 }
+
+u64 GetVCartDriveSize(void) {
+    return cart_init ? cdata->cart_size : 0;
+}

source/virtual/vcart.h

@@ -7,3 +7,4 @@ u32 InitVCartDrive(void);
 bool ReadVCartDir(VirtualFile* vfile, VirtualDir* vdir);
 int ReadVCartFile(const VirtualFile* vfile, u8* buffer, u32 offset, u32 count);
 // int WriteVCartFile(const VirtualFile* vfile, const u8* buffer, u32 offset, u32 count); // no writes
+u64 GetVCartDriveSize(void);

source/virtual/vgame.c

@@ -743,3 +743,7 @@ bool MatchVGameLv3Filename(const char* name, const VirtualFile* vfile, u32 n_cha
     if (!GetVGameLv3Filename(lv3_name, vfile, 256)) return false;
     return (strncasecmp(name, lv3_name, n_chars) == 0);
 }
+
+u64 GetVGameDriveSize(void) {
+    return (vgame_type) ? GetMountSize() : 0;
+}

source/virtual/vgame.h

@@ -15,3 +15,5 @@ int ReadVGameFile(const VirtualFile* vfile, u8* buffer, u32 offset, u32 count);
 bool FindVirtualFileInLv3Dir(VirtualFile* vfile, const VirtualDir* vdir, const char* name);
 bool GetVGameLv3Filename(char* name, const VirtualFile* vfile, u32 n_chars);
 bool MatchVGameLv3Filename(const char* name, const VirtualFile* vfile, u32 n_chars);
+
+u64 GetVGameDriveSize(void);

source/virtual/virtual.c

@@ -193,3 +193,14 @@ int WriteVirtualFile(const VirtualFile* vfile, const u8* buffer, u32 offset, u32
     
     return -1;
 }
+
+u64 GetVirtualDriveSize(const char* path) {
+    u32 virtual_src = GetVirtualSource(path);
+    if (virtual_src & (VRT_SYSNAND|VRT_EMUNAND|VRT_IMGNAND))
+        return GetVNandDriveSize(virtual_src);
+    else if (virtual_src & VRT_GAME)
+        return GetVGameDriveSize();
+    else if (virtual_src & VRT_CART)
+        return GetVCartDriveSize();
+    return 0;
+}

source/virtual/virtual.h

@@ -59,3 +59,5 @@ bool GetVirtualFilename(char* name, const VirtualFile* vfile, u32 n_chars);
 
 int ReadVirtualFile(const VirtualFile* vfile, u8* buffer, u32 offset, u32 count, u32* bytes_read);
 int WriteVirtualFile(const VirtualFile* vfile, const u8* buffer, u32 offset, u32 count, u32* bytes_written);
+
+u64 GetVirtualDriveSize(const char* path);

source/virtual/vnand.c

@@ -97,3 +97,7 @@ int WriteVNandFile(const VirtualFile* vfile, const u8* buffer, u32 offset, u32 c
     if ((res == 0) && (vfile->flags & VFLAG_GBA_VC)) res = FixAgbSaveCmac(nand_dst);
     return res;
 }
+
+u64 GetVNandDriveSize(u32 nand_src) {
+    return GetNandSizeSectors(nand_src) * 0x200;
+}

source/virtual/vnand.h

@@ -7,3 +7,4 @@ bool CheckVNandDrive(u32 nand_src);
 bool ReadVNandDir(VirtualFile* vfile, VirtualDir* vdir);
 int ReadVNandFile(const VirtualFile* vfile, u8* buffer, u32 offset, u32 count);
 int WriteVNandFile(const VirtualFile* vfile, const u8* buffer, u32 offset, u32 count);
+u64 GetVNandDriveSize(u32 nand_src);