-// This is part of Pico Library
-
-// (c) Copyright 2007 notaz, All rights reserved.
-// Free for non-commercial use.
-
-// For commercial use, separate licencing terms must be obtained.
+// Savestate handling for emulated Sega/Mega CD machine.
+// (c) Copyright 2007, Grazvydas "notaz" Ignotas
#include "../PicoInt.h"
static char *chunk_names[] = {
+ "INVALID!",
"Saving.. M68K state",
"Saving.. RAM",
"Saving.. VRAM",
if (PicoStateProgressCB) PicoStateProgressCB(chunk_names[name]); \
if (!write_chunk(name, sizeof(buff), &buff, file)) return 1;
-int PicoCdSaveState(void *file)
+PICO_INTERNAL int PicoCdSaveState(void *file)
{
unsigned char buff[0x60];
void *ym2612_regs = YM2612GetRegs();
g_read_offs += len;
#define CHECKED_READ2(len2,data) \
- if (len2 != len) R_ERROR_RETURN("unexpected len, wanted " #len2); \
- CHECKED_READ(len2, data)
+ if (len2 != len) { \
+ printf("unexpected len %i, wanted %i (%s)", len, len2, #len2); \
+ if (len > len2) R_ERROR_RETURN("failed."); \
+ /* else read anyway and hope for the best.. */ \
+ } \
+ CHECKED_READ(len, data)
#define CHECKED_READ_BUFF(buff) CHECKED_READ2(sizeof(buff), &buff);
-int PicoCdLoadState(void *file)
+PICO_INTERNAL int PicoCdLoadState(void *file)
{
unsigned char buff[0x60];
int ver, len;
/* after load events */
if (Pico_mcd->s68k_regs[3]&4) // 1M mode?
wram_2M_to_1M(Pico_mcd->word_ram2M);
- mp3_start_play(Pico_mcd->TOC.Tracks[Pico_mcd->m.audio_track].F, Pico_mcd->m.audio_offset);
+ PicoMemResetCD(Pico_mcd->s68k_regs[3]);
+#ifdef _ASM_CD_MEMORY_C
+ if (Pico_mcd->s68k_regs[3]&4)
+ PicoMemResetCDdecode(Pico_mcd->s68k_regs[3]);
+#endif
+ if (Pico_mcd->m.audio_track > 0 && Pico_mcd->m.audio_track < Pico_mcd->TOC.Last_Track)
+ mp3_start_play(Pico_mcd->TOC.Tracks[Pico_mcd->m.audio_track].F, Pico_mcd->m.audio_offset);
// restore hint vector
*(unsigned short *)(Pico_mcd->bios + 0x72) = Pico_mcd->m.hint_vector;
return 0;
}
+
+int PicoCdLoadStateGfx(void *file)
+{
+ int ver, len, found = 0;
+ char buff[8];
+
+ g_read_offs = 0;
+ CHECKED_READ(8, buff);
+ if (strncmp(buff, "PicoSMCD", 8)) R_ERROR_RETURN("bad header");
+ CHECKED_READ(4, &ver);
+
+ while (!areaEof(file) && found < 4)
+ {
+ CHECKED_READ(1, buff);
+ CHECKED_READ(4, &len);
+ if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");
+ if (buff[0] > CHUNK_FM && !(PicoMCD & 1)) R_ERROR_RETURN("cd chunk in non CD state?");
+
+ switch (buff[0])
+ {
+ case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); found++; break;
+ case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); found++; break;
+ case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); found++; break;
+ case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); found++; break;
+ default:
+ areaSeek(file, len, SEEK_CUR);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+