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Whoops, now it's fixed

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dborth 2008-10-04 02:40:33 +00:00
parent 05446c5203
commit 9faeed4c70
1 changed files with 23 additions and 29 deletions
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52
source/ngc/dvd.cpp
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@ -48,44 +48,38 @@ unsigned char dvdbuffer[2048];
int int
dvd_read (void *dst, unsigned int len, u64 offset) dvd_read (void *dst, unsigned int len, u64 offset)
{ {
unsigned char *buffer = (unsigned char *) (unsigned int) DVDreadbuffer;
if (len > 2048) if (len > 2048)
return 0; /*** We only allow 2k reads **/ return 0; /*** We only allow 2k reads **/
DCInvalidateRange ((void *) buffer, len);
// don't read past the end of the DVD (1.5 GB for GC DVD, 4.7 GB for DVD) // don't read past the end of the DVD (1.5 GB for GC DVD, 4.7 GB for DVD)
if(offset < 0x57057C00 || (isWii && offset < 0x118244F00LL)) if((offset < 0x57057C00) || (isWii && (offset < 0x118244F00LL)))
{ {
unsigned char *buffer = (unsigned char *) (unsigned int) DVDreadbuffer;
DCInvalidateRange ((void *) buffer, len);
#ifdef HW_DOL #ifdef HW_DOL
dvd[0] = 0x2E;
dvd[1] = 0;
dvd[2] = 0xA8000000;
dvd[3] = (u32)(offset >> 2);
dvd[4] = len;
dvd[5] = (u32) buffer;
dvd[6] = len;
dvd[7] = 3;
// Enable reading with DMA
while (dvd[7] & 1);
// Ensure it has completed
if (dvd[0] & 0x4)
return 0;
#else
if (DI_ReadDVD(buffer, len >> 11, (u32)(offset >> 11)))
return 0;
#endif
dvd[0] = 0x2E;
dvd[1] = 0;
dvd[2] = 0xA8000000;
dvd[3] = (u32)(offset >> 2);
dvd[4] = len;
dvd[5] = (u32) buffer;
dvd[6] = len;
dvd[7] = 3; /*** Enable reading with DMA ***/
while (dvd[7] & 1);
memcpy (dst, buffer, len); memcpy (dst, buffer, len);
if (dvd[0] & 0x4) /* Ensure it has completed */
return 0;
return 1; return 1;
#elif WII_DVD
int ret = 1;
ret = DI_ReadDVD(dst, len >> 11, (u32)(offset >> 11));
if (ret==0)
return 1;
else
return 0;
#endif
} }
return 0; return 0;