Detect LZ4 files correctly now

This commit is contained in:
Jaby 2023-04-13 21:51:45 +02:00
parent 5d0239bfe8
commit 1329536586
3 changed files with 11 additions and 12 deletions

View File

@ -31,12 +31,12 @@ namespace JabyEngine {
return const_cast<const AutoLBAEntry*>(this)->get_size_in_sectors(); return const_cast<const AutoLBAEntry*>(this)->get_size_in_sectors();
} }
constexpr bool isLZ4() const { constexpr bool is_lz4() const {
return bit::is_set(this->value, AutoLBAEntry::IsLZ4Compressed); return bit::is_set(this->value, AutoLBAEntry::IsLZ4Compressed);
} }
constexpr bool isLZ4() const volatile { constexpr bool is_lz4() const volatile {
return const_cast<const AutoLBAEntry*>(this)->isLZ4(); return const_cast<const AutoLBAEntry*>(this)->is_lz4();
} }
}; };
} }

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@ -52,7 +52,7 @@ namespace JabyEngine {
return self.circular_buffer.allocate(); return self.circular_buffer.allocate();
})); }));
printf(">>> CD needs to load LBA: %i -> %i\n", cur_lba.get_lba(), cur_lba.get_size_in_sectors()); printf(">>> CD needs to load LBA: %i -> %i (is LZ4: [%s])\n", cur_lba.get_lba(), cur_lba.get_size_in_sectors(), cur_lba.is_lz4() ? "Yes" : "No");
} }
bool CDFileProcessor :: process_data() { bool CDFileProcessor :: process_data() {

View File

@ -8,11 +8,6 @@ pub type LBANameVec = Vec<String>;
mod main; mod main;
/*
Size in sectors [22, 31];
Is LZ4 compressed [19];
LBA value [0, 18]
*/
#[repr(packed)] #[repr(packed)]
struct LBAEntry { struct LBAEntry {
raw: u32, raw: u32,
@ -20,10 +15,10 @@ struct LBAEntry {
impl LBAEntry { impl LBAEntry {
const SIZE_IN_SECTOR_RANGE:BitRange = BitRange::from_to(22, 31); const SIZE_IN_SECTOR_RANGE:BitRange = BitRange::from_to(22, 31);
const _IS_LZ4_COMPRESSED:Bit = Bit::at(19); const IS_LZ4_COMPRESSED:Bit = Bit::at(19);
const LBA_VALUE_RANGE:BitRange = BitRange::from_to(0, 18); const LBA_VALUE_RANGE:BitRange = BitRange::from_to(0, 18);
pub fn write_entry(&mut self, lba: usize, size_bytes: usize, _is_lz4: bool) -> Result<(), Error> { pub fn write_entry(&mut self, lba: usize, size_bytes: usize, is_lz4: bool) -> Result<(), Error> {
if lba > Self::LBA_VALUE_RANGE.max_value() { if lba > Self::LBA_VALUE_RANGE.max_value() {
return Err(Error::from_text(format!("LBA of value {} is impossible and can not be encoded! Maximum LBA value is: {}", lba, Self::LBA_VALUE_RANGE.max_value()))); return Err(Error::from_text(format!("LBA of value {} is impossible and can not be encoded! Maximum LBA value is: {}", lba, Self::LBA_VALUE_RANGE.max_value())));
} }
@ -40,7 +35,11 @@ impl LBAEntry {
return Err(Error::from_str("LBA Entry will overwrite non-zero value!\nIs no space allocated for the LBA Entries?")); return Err(Error::from_str("LBA Entry will overwrite non-zero value!\nIs no space allocated for the LBA Entries?"));
} }
self.raw = Self::SIZE_IN_SECTOR_RANGE.or_value(Self::LBA_VALUE_RANGE.or_value(0, lba), size_in_sectors) as u32; let new_raw = Self::LBA_VALUE_RANGE.or_value(0, lba);
let new_raw = Self::SIZE_IN_SECTOR_RANGE.or_value(new_raw, size_in_sectors);
let new_raw = Self::IS_LZ4_COMPRESSED.or_value(new_raw, is_lz4);
self.raw = new_raw as u32;
Ok(()) Ok(())
} }
} }