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savestate loader in menu

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@56 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-02-25 19:20:45 +00:00
parent 913ef4b7a3
commit 860c6322c3
9 changed files with 344 additions and 79 deletions
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34
Pico/cd/Area.c
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@ -250,3 +250,37 @@ int PicoCdLoadState(void *file)
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;
}