cdriso: parse .cd<X> files as .cue.

Enables the parsing of .cd<X> files as cuesheets.
Useful to 'hide' individual `.cue` files from the frontend
when using a multi-disc game configured in a playlist (`.m3u`) file.

diff --git a/libpcsxcore/cdriso.c b/libpcsxcore/cdriso.c
index c8eacb8..25aa9de 100644 (file)
--- a/libpcsxcore/cdriso.c
+++ b/libpcsxcore/cdriso.c
@@ -477,7 +477,10 @@ static int parsecue(const char *isofile) {
        strncpy(cuename, isofile, sizeof(cuename));
        cuename[MAXPATHLEN - 1] = '\0';
        if (strlen(cuename) >= 4) {
-               strcpy(cuename + strlen(cuename) - 4, ".cue");
+               // If 'isofile' is a '.cd<X>' file, use it as a .cue file
+               //  and don't try to search the additional .cue file
+               if (strncasecmp(cuename + strlen(cuename) - 4, ".cd", 3) != 0 )
+                       strcpy(cuename + strlen(cuename) - 4, ".cue");
        }
        else {
                return -1;
@@ -604,9 +607,9 @@ static int parsecue(const char *isofile) {
                        file_len = ftell(ti[numtracks + 1].handle) / 2352;
 
                        if (numtracks == 0 && strlen(isofile) >= 4 &&
-                               strcmp(isofile + strlen(isofile) - 4, ".cue") == 0)
-                       {
-                               // user selected .cue as image file, use it's data track instead
+                               (strcmp(isofile + strlen(isofile) - 4, ".cue") == 0 ||
+                               strncasecmp(isofile + strlen(isofile) - 4, ".cd", 3) == 0)) {
+                               // user selected .cue/.cdX as image file, use it's data track instead
                                fclose(cdHandle);
                                cdHandle = fopen(filepath, "rb");
                        }
@@ -615,6 +618,10 @@ static int parsecue(const char *isofile) {
 
        fclose(fi);
 
+       // if there are no tracks detected, then it's not a cue file
+       if (!numtracks)
+               return -1;
+
        return 0;
 }