spu: rework synchronization

[pcsx_rearmed.git] / libpcsxcore / ppf.c

diff --git a/libpcsxcore/ppf.c b/libpcsxcore/ppf.c
index 45c8733..0d80107 100644 (file)
--- a/libpcsxcore/ppf.c
+++ b/libpcsxcore/ppf.c
@@ -190,6 +190,8 @@ void BuildPPFCache() {
 
        FreePPFCache();
 
+       if (CdromId[0] == '\0') return;
+
        // Generate filename in the format of SLUS_123.45
        buffer[0] = toupper(CdromId[0]);
        buffer[1] = toupper(CdromId[1]);
@@ -330,3 +332,58 @@ 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];
+       FILE *sbihandle;
+       u8 sbitime[3], t;
+       int s;
+
+       sbihandle = fopen(fname, "rb");
+       if (sbihandle == NULL)
+               return -1;
+
+       sbi_sectors = calloc(1, sector_count / 8);
+       if (sbi_sectors == NULL)
+               return -1;
+
+       // 4-byte SBI header
+       fread(buffer, 1, 4, sbihandle);
+       while (1) {
+               s = fread(sbitime, 1, 3, sbihandle);
+               if (s != 3)
+                       break;
+               fread(&t, 1, 1, sbihandle);
+               switch (t) {
+               default:
+               case 1:
+                       s = 10;
+                       break;
+               case 2:
+               case 3:
+                       s = 3;
+                       break;
+               }
+               fseek(sbihandle, s, SEEK_CUR);
+
+               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;
+       }
+}