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52 lines
1 KiB
Rust
52 lines
1 KiB
Rust
// SPDX-FileCopyrightText: 2024 Joshua Goins <josh@redstrate.com>
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// SPDX-License-Identifier: GPL-3.0-or-later
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use std::io::Cursor;
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use crate::ByteSpan;
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use binrw::binread;
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use binrw::BinRead;
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#[binread]
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#[derive(Debug, Clone, Copy)]
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#[repr(C)]
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pub enum ShaderStage {
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#[br(magic = 0u8)]
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Vertex,
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#[br(magic = 1u8)]
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Pixel,
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}
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#[binread]
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#[derive(Debug)]
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#[brw(little)]
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struct SchdHeader {
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magic: i32, // TODO: what magic?
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#[br(count = 3)]
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#[bw(pad_size_to = 3)]
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#[bw(map = |x : &String | x.as_bytes())]
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#[br(map = | x: Vec<u8> | String::from_utf8(x).unwrap().trim_matches(char::from(0)).to_string())]
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version: String,
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stage: ShaderStage,
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dxc_magic: u32, // TODO: WHAT MAGIC??
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file_length: i32,
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shader_offset: u32,
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parameter_offset: u32,
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}
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#[derive(Debug)]
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pub struct Schd {}
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impl Schd {
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/// Reads an existing ULD file
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pub fn from_existing(buffer: ByteSpan) -> Option<Self> {
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let mut cursor = Cursor::new(buffer);
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SchdHeader::read(&mut cursor).ok()?;
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Some(Schd {})
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}
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}
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