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savestates works

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@26 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-01-29 23:39:15 +00:00
parent 51a902ae25
commit 7573607016
16 changed files with 219 additions and 161 deletions
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74
Pico/cd/Area.c
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@ -20,14 +20,24 @@ typedef enum {
CHUNK_RAM,
CHUNK_VRAM,
CHUNK_ZRAM,
CHUNK_CRAM,
CHUNK_CRAM, // 5
CHUNK_VSRAM,
CHUNK_MISC,
CHUNK_VIDEO,
CHUNK_Z80,
CHUNK_PSG,
CHUNK_PSG, // 10
CHUNK_FM,
// CD stuff
CHUNK_S68K,
CHUNK_PRG_RAM,
CHUNK_WORD_RAM,
CHUNK_BRAM, // 15
CHUNK_GA_REGS,
CHUNK_CDC,
CHUNK_CDD,
CHUNK_SCD,
CHUNK_RC, // 20
CHUNK_MISC_CD,
} chunk_name_e;
@ -77,25 +87,44 @@ int PicoCdSaveState(void *file)
CHECKED_WRITE(CHUNK_FM, 0x200+4, ym2612_regs);
// TODO: cd stuff
if (PicoMCD & 1)
{
Pico_mcd->m.audio_offset = mp3_get_offset();
memset(buff, 0, sizeof(buff));
PicoAreaPackCpu(buff, 1);
CHECKED_WRITE_BUFF(CHUNK_S68K, buff);
CHECKED_WRITE_BUFF(CHUNK_PRG_RAM, Pico_mcd->prg_ram);
CHECKED_WRITE_BUFF(CHUNK_WORD_RAM, Pico_mcd->word_ram); // in 2M format
CHECKED_WRITE_BUFF(CHUNK_BRAM, Pico_mcd->bram);
CHECKED_WRITE_BUFF(CHUNK_GA_REGS, Pico_mcd->s68k_regs);
CHECKED_WRITE_BUFF(CHUNK_CDD, Pico_mcd->cdd);
CHECKED_WRITE_BUFF(CHUNK_CDC, Pico_mcd->cdc);
CHECKED_WRITE_BUFF(CHUNK_SCD, Pico_mcd->scd);
CHECKED_WRITE_BUFF(CHUNK_RC, Pico_mcd->rot_comp);
CHECKED_WRITE_BUFF(CHUNK_MISC_CD, Pico_mcd->m);
}
return 0;
}
static int g_read_offs = 0;
#define CHECKED_READ(len,data) \
if (areaRead(data, 1, len, file) != len) { \
g_read_offs += len; \
printf("areaRead: premature EOF\n"); \
return 0; \
}
#define R_ERROR_RETURN(error) \
{ \
printf("PicoCdLoadState @ %x: " error "\n", g_read_offs); \
return 1; \
}
// when is eof really set?
#define CHECKED_READ(len,data) \
if (areaRead(data, 1, len, file) != len) { \
if (len == 1 && areaEof(file)) return 0; \
R_ERROR_RETURN("areaRead: premature EOF\n"); \
return 1; \
} \
g_read_offs += len;
#define CHECKED_READ2(len2,data) \
if (len2 != len) R_ERROR_RETURN("unexpected len, wanted " #len2); \
CHECKED_READ(len2, data)
@ -117,7 +146,7 @@ int PicoCdLoadState(void *file)
{
CHECKED_READ(1, buff);
CHECKED_READ(4, &len);
if (len < 0 || len > 1024*256) R_ERROR_RETURN("bad length");
if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");
switch (buff[0])
{
@ -143,6 +172,31 @@ int PicoCdLoadState(void *file)
CHECKED_READ2(0x200+4, ym2612_regs);
YM2612PicoStateLoad();
break;
// cd stuff
case CHUNK_S68K:
CHECKED_READ_BUFF(buff);
PicoAreaUnpackCpu(buff, 1);
break;
case CHUNK_PRG_RAM: CHECKED_READ_BUFF(Pico_mcd->prg_ram); break;
case CHUNK_WORD_RAM: CHECKED_READ_BUFF(Pico_mcd->word_ram); break;
case CHUNK_BRAM: CHECKED_READ_BUFF(Pico_mcd->bram); break;
case CHUNK_GA_REGS: CHECKED_READ_BUFF(Pico_mcd->s68k_regs); break;
case CHUNK_CDD: CHECKED_READ_BUFF(Pico_mcd->cdd); break;
case CHUNK_CDC: CHECKED_READ_BUFF(Pico_mcd->cdc); break;
case CHUNK_SCD: CHECKED_READ_BUFF(Pico_mcd->scd); break;
case CHUNK_RC: CHECKED_READ_BUFF(Pico_mcd->rot_comp); break;
case CHUNK_MISC_CD:
CHECKED_READ_BUFF(Pico_mcd->m);
mp3_start_play(Pico_mcd->TOC.Tracks[Pico_mcd->m.audio_track].F, Pico_mcd->m.audio_offset);
break;
default:
printf("skipping unknown chunk %i of size %i\n", buff[0], len);
areaSeek(file, len, SEEK_CUR);
break;
}
}