X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=dvd.hpp;fp=dvd.hpp;h=db0f9835a7472a6a1fd896003958e4a64f0d2daa;hb=b463276d863f86a4268b5cac63fc6879ad6517bc;hp=9811fa3d89c99f973b9c8ff3b0ac7645c6b3f69b;hpb=856f9bfe9778a88ff359436c64c3e104fe5f56dc;p=videolink.git

diff --git a/dvd.hpp b/dvd.hpp
index 9811fa3..db0f983 100644
--- a/dvd.hpp
+++ b/dvd.hpp
@@ -4,18 +4,27 @@
 namespace dvd
 {
     // Maximum number of buttons in a menu.
-    const int menu_buttons_max = 36;
+    const unsigned menu_buttons_max = 36;
 
     // Number of colours allowed in each button.
     // Buttons can change colour when they are selected.
-    const int button_n_colours = 4;
+    const unsigned button_n_colours = 4;
 
     // DVD virtual machine register size.
-    const int reg_bits = 16;
+    const unsigned reg_bits = 16;
 
     // Number by which button numbers must be multiplied when stored in
     // system register 8.
-    const int reg_s8_button_mult = 0x400;
+    const unsigned reg_s8_button_mult = 0x400;
+
+    // Maximum number of PGCs in a domain that can be linked to.
+    // dvdauthor uses some menu numbers for special purposes,
+    // resulting in a practical limit of 119 per domain.
+    const unsigned domain_pgcs_max = 119;
+
+    // Maximum number of titles on a disc.  (Also the maximum number of
+    // titlesets per disc.)
+    const unsigned titles_max = 99;
 }
 
 #endif // !INC_DVD_HPP