add redump.org SBI support

[pcsx_rearmed.git] / libpcsxcore / ppf.c

diff --git a/libpcsxcore/ppf.c b/libpcsxcore/ppf.c
index 45c8733..268ed1c 100644 (file)
--- a/libpcsxcore/ppf.c
+++ b/libpcsxcore/ppf.c
@@ -330,3 +330,46 @@ void BuildPPFCache() {
 
        SysPrintf(_("Loaded PPF %d.0 patch: %s.\n"), method + 1, szPPF);
 }
+
+// redump.org SBI files, slightly different handling from PCSX-Reloaded
+unsigned char *sbi_sectors;
+
+int LoadSBI(const char *fname, int sector_count) {
+       char buffer[16], sbifile[MAXPATHLEN];
+       FILE *sbihandle;
+       u8 sbitime[3];
+       int s;
+
+       sbihandle = fopen(fname, "rb");
+       if (sbihandle == NULL)
+               return -1;
+
+if (sbi_sectors != NULL) printf("sbi_sectors?\n");
+       sbi_sectors = calloc(1, sector_count / 8);
+       if (sbi_sectors == NULL)
+               return -1;
+
+       // 4-byte SBI header
+       fread(buffer, 1, 4, sbihandle);
+       while (!feof(sbihandle)) {
+               fread(sbitime, 1, 3, sbihandle);
+               fread(buffer, 1, 11, sbihandle);
+
+               s = MSF2SECT(btoi(sbitime[0]), btoi(sbitime[1]), btoi(sbitime[2]));
+               if (s < sector_count)
+                       sbi_sectors[s >> 3] |= 1 << (s&7);
+               else
+                       SysPrintf(_("SBI sector %d >= %d?\n"), s, sector_count);
+       }
+
+       fclose(sbihandle);
+
+       return 0;
+}
+
+void UnloadSBI(void) {
+       if (sbi_sectors) {
+               free(sbi_sectors);
+               sbi_sectors = NULL;
+       }
+}