redstrate/physis
1
Fork 0
mirror of https://github.com/redstrate/Physis.git synced 2025-04-20 11:47:46 +00:00
Code Activity

Add basic support for B4G4R4A4 textures

Browse source 
Not sure if it's actually correct, but it works without crashing now.
This commit is contained in:
Joshua Goins 2024-04-20 10:00:13 -04:00
parent ed9d7936e1
commit 04eecd5030
1 changed files with 25 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
src/tex.rs
View file

@ -46,6 +46,7 @@ bitflags! {
#[brw(repr = u32)]
#[derive(Debug)]
enum TextureFormat {
B4G4R4A4 = 0x1440,
B8G8R8A8 = 0x1450,
BC1 = 0x3420,
BC3 = 0x3431,
@ -82,7 +83,7 @@ impl Texture {
/// Reads an existing TEX file
pub fn from_existing(buffer: ByteSpan) -> Option<Texture> {
let mut cursor = Cursor::new(buffer);
let header = TexHeader::read(&mut cursor).ok()?;
let header = TexHeader::read(&mut cursor).unwrap();
cursor
.seek(SeekFrom::Start(std::mem::size_of::<TexHeader>() as u64))
@ -94,6 +95,29 @@ impl Texture {
let mut dst;
match header.format {
TextureFormat::B4G4R4A4 => {
dst = vec![0u8; header.width as usize * header.height as usize * 4];
let mut offset = 0;
let mut dst_offset = 0;
for _ in 0..header.width * header.height {
let short: u16 = ((src[offset] as u16) << 8) | src[offset + 1] as u16;
let src_b = short & 0xF;
let src_g= (short >> 4) & 0xF;
let src_r = (short >> 8) & 0xF;
let src_a = (short >> 12) & 0xF;
dst[dst_offset] = (17 * src_r) as u8;
dst[dst_offset + 1] = (17 * src_g) as u8;
dst[dst_offset + 2] = (17 * src_b) as u8;
dst[dst_offset + 3] = (17 * src_a) as u8;
offset += 2;
dst_offset += 4;
}
}
TextureFormat::B8G8R8A8 => {
dst = src;
}