Partially working ART and PALETTE parsers.

1 files changed, 0 insertions, 120 deletions

diff --git a/src/art.rs b/src/art.rs
deleted file mode 100644
index 2e7e116..0000000
--- a/src/art.rs
+++ /dev/null
@@ -1,120 +0,0 @@
-// Copyright (C) 2018 Jakob L. Kreuze, All Rights Reserved.
-//
-// This file is part of rebuild.
-//
-// rebuild is free software: you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the Free Software
-// Foundation, either version 3 of the License, or (at your option) any later
-// version.
-//
-// rebuild is distributed in the hope that it will be useful, but WITHOUT ANY
-// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-// A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License along with
-// rebuild. If not, see <http://www.gnu.org/licenses/>.
-
-extern crate simple_error;
-
-use std::error::Error;
-
-// What's the PALETTE.DAT format?
-//
-// char palette[768], palookup[numpalookups][256], transluc[256][256];
-// short numpalookups;
-//
-// fil = open("PALETTE.DAT",...);
-// read(fil,palette,768);
-// read(fil,&numpalookups,2);
-// read(fil,palookup,numpalookups*256);
-// read(fil,transluc,65536);
-// close(fil);
-//
-// PALETTE: This 768 byte array is exactly the palette you want. The format is:
-// Red0, Green0, Blue0, Red1, Green1, Blue1, ..., Blue255
-// The colors are based on the VGA 262,144 color palette. The values range from
-// 0-63, so if you want to convert it to a windows palette you will have to
-// multiply each byte by 4.
-//
-// NUMPALOOKUPS: The number of shading tables used. Usually this number is 32,
-// but 16 or 64 have also been used. Each of the 256 colors of the VGA palette
-// can take on any of "numpalookups" number of shades.
-//
-// PALOOKUP: The shading table. If numpalookups = 32, then this table is:
-// (32 shades) * (256 colors) = 8192 bytes (8K). The shade tables are often made
-// to go from normal brightness (shade #0) down to pitch black (shade #31) So
-// the first 256 bytes of the table would be for shade #0, etc...
-//
-// TRANSLUC: 64K translucent lookup table. Given any 2 colors of the palette,
-// this lookup table gives the best match of the 2 colors when mixed together.
-//
-// Here's a funny story: I noticed that Duke3D's PALETTE.DAT file is 8K longer
-// than it should be. Any PALETTE.DAT file with 32 shades and translucent table
-// should be 74,498 bytes. Duke3D's palette is 82,690 bytes, but it only has 32
-// shades! The reason is that at one time, Duke3D had 64 shades in their
-// "palookup" table. Then when we noticed that this extra memory overhead slowed
-// down the frame rate of the game noticably, it was converted back to 32
-// shades. The problem is that my palette conversion program never truncated off
-// the end of the file. So the last 8K of Duke3D's PALETTE.DAT is the last 8K of
-// a translucent table that was based on an older version of their palette.
-//
-//
-// For canonical parsers, see:
-// - 'paletteLoadFromDisk' in EDuke's 'build/src/palette.cpp'
-// - 'loadpalette' in Build's 'ENGINE.C'
-
-/// Parser for PALETTE.DAT, the file specifying the color format.
-pub struct Palette {
-    colors: Vec<u8>,
-}
-
-impl Palette {
-    /// Parse the contents of a PALETTE.DAT
-    pub fn new(data: &[u8]) -> Result<Palette, Box<Error>> {
-        let len = data.len();
-
-        // FIXME: This only takes into account the actual palette. PALETTE.DAT
-        // should also contain some lookup tables.
-        if len < 770 {
-            bail!("Too small to contain palette.");
-        }
-
-        let colors = data[0..768].to_vec();
-
-        // FIXME: Not loading the lookup table yet because.. well, I don't know
-        // if we really need it yet? I suppose we'll need to get the values for
-        // TRANSLUC, but we're not on DOS anymore and I think a lookup table
-        // would be overkill. My plan is to convert ART files into bitmaps ahead
-        // of time, anyway.
-
-        // let _lookup_count = LittleEndian::read_u16(size) as usize;
-
-        Ok(Palette { colors })
-    }
-}
-
-#[cfg(test)]
-mod palette_tests {
-    use super::*;
-
-    #[test]
-    fn test_load_slice() {
-        // Considering the size of PALETTE.DAT, it would be absurd embed as a
-        // blob in this file. We'll just generate dummy data. I'm leaving the
-        // number of 'pa' lookups as 0 intentionally.
-        let data = [0; 0x10301];
-
-        if let Err(e) = Palette::new(&data) {
-            panic!("Valid PALETTE errored out with '{}'", e);
-        }
-    }
-
-    #[test]
-    fn test_not_enough_data() {
-        let data = [0; 1];
-
-        if let Ok(_) = Palette::new(&data) {
-            panic!("Accepted incomplete header.");
-        }
-    }
-}