RaySollium99/picodrive
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optimizations, fixes, hacks, psp, ...

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@295 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-11-15 23:01:20 +00:00
parent 8022f53da6
commit b542be4686
37 changed files with 928 additions and 548 deletions
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9
Pico/cd/buffering.c
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@ -80,6 +80,7 @@ PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba)
dprintf("CD buffer seek %i -> %i\n", prev_lba, lba);
pm_seek(Pico_mcd->TOC.Tracks[0].F, where_seek, SEEK_SET);
}
else if (prev_lba == 0x80000000) printf("wtf?\n");
dprintf("CD buffer miss %i -> %i\n", prev_lba, lba);
@ -89,6 +90,7 @@ PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba)
dprintf("CD buffer move=%i, read_len=%i", PicoCDBuffers - read_len, read_len);
memmove(cd_buffer + read_len*2048, cd_buffer, (PicoCDBuffers - read_len)*2048);
moved = 1;
if (prev_lba == 0x80000000) printf("wtf?\n");
}
else
{
@ -104,17 +106,20 @@ PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba)
{
int i = 0;
#if REDUCE_IO_CALLS
int bufs = (read_len*2048+304) / (2048+304);
int bufs = (read_len*2048) / (2048+304);
pm_read(cd_buffer, bufs*(2048+304), Pico_mcd->TOC.Tracks[0].F);
for (i = 1; i < bufs; i++)
// should really use memmove here, but my memcpy32 implementation is also suitable here
memcpy32((int *)(cd_buffer + i*2048), (int *)(cd_buffer + i*(2048+304)), 2048/4);
#endif
for (; i < read_len; i++)
for (; i < read_len - 1; i++)
{
pm_read(cd_buffer + i*2048, 2048 + 304, Pico_mcd->TOC.Tracks[0].F);
// pm_seek(Pico_mcd->TOC.Tracks[0].F, 304, SEEK_CUR); // seeking is slower, in PSP case even more
}
// further data might be moved, do not overwrite
pm_read(cd_buffer + i*2048, 2048, Pico_mcd->TOC.Tracks[0].F);
pm_seek(Pico_mcd->TOC.Tracks[0].F, 304, SEEK_CUR);
}
else
{