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Philips CD-i: Subcode and image handling (#954)

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* Philips CD-i: Rewritten image handling

Added subchannel Q data
Added Table of Contents
Fixed differences between CUE and CHD
Fixed handling of data in pregap

* Philips CD-i: Add support for scrambled sectors

Fixes "The Apprentice (Europe)"
This commit is contained in:
Andre Zeps
2025-01-19 08:49:05 +01:00
committed by GitHub
parent 5f9b703ae0
commit 57d29ae3e5
2 changed files with 456 additions and 98 deletions
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10
user_io.cpp
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@@ -3024,8 +3024,10 @@ void user_io_poll()
lba = spi_w(0);
lba = (lba & 0xFFFF) | (((uint32_t)spi_w(0)) << 16);
blks = ((c >> 9) & 0x3F) + 1;
if ((disk == 0 && is_cdi()) || (disk == 1 && is_psx()))
if (disk == 1 && is_psx())
blksz = 2352;
else if (disk == 0 && is_cdi())
blksz = (2352 + 24);
else
blksz = 128 << ((c >> 6) & 7);
@@ -3156,7 +3158,7 @@ void user_io_poll()
unsigned int psx_blksz = psx_chd_hunksize();
if (psx_blksz && psx_blksz <= sizeof(buffer[0])) buf_n = psx_blksz / blksz;
}
else if (is_cdi() && blksz == 2352)
else if (is_cdi() && blksz == (2352 + 24))
{
//returns 0 if the mounted disk is not a chd, otherwise returns the chd hunksize in bytes
unsigned int psx_blksz = cdi_chd_hunksize();
@@ -3177,7 +3179,7 @@ void user_io_poll()
done = 1;
buffer_lba[disk] = lba;
}
else if (blksz == 2352 && is_cdi())
else if (blksz == (2352 + 24) && is_cdi())
{
diskled_on();
cdi_read_cd(buffer[disk], lba, buf_n);
@@ -3261,7 +3263,7 @@ void user_io_poll()
psx_read_cd(buffer[disk], lba, buf_n);
buffer_lba[disk] = lba;
}
else if (blksz == 2352 && is_cdi())
else if (blksz == (2352 + 24) && is_cdi())
{
cdi_read_cd(buffer[disk], lba, buf_n);
buffer_lba[disk] = lba;