From 306f96164784a8cbf405e72fa4364d6523366e95 Mon Sep 17 00:00:00 2001
From: metamuffin <metamuffin@disroot.org>
Date: Mon, 5 May 2025 15:09:54 +0200
Subject: old dir

---
 evc/src/codec/compress.rs | 155 ----------------------------------------------
 1 file changed, 155 deletions(-)
 delete mode 100644 evc/src/codec/compress.rs

(limited to 'evc/src/codec/compress.rs')

diff --git a/evc/src/codec/compress.rs b/evc/src/codec/compress.rs
deleted file mode 100644
index 09d1f29..0000000
--- a/evc/src/codec/compress.rs
+++ /dev/null
@@ -1,155 +0,0 @@
-use crate::{
-    block::Block,
-    frame::Frame,
-    helpers::{pixel::Pixel, vector::Vec2},
-    view::View,
-};
-use rustdct::DctPlanner;
-
-pub fn compress_block(block: &mut Block, size: Vec2<usize>) {
-    match block {
-        Block::Literal(p) => {
-            let comp = lit_compress(size.x, size.y, &p);
-            *block = Block::CompressedLiteral(comp)
-        }
-        Block::Split(box [a, b]) => {
-            let vert = size.x > size.y;
-            compress_block(
-                a,
-                if vert {
-                    Vec2 {
-                        x: size.x / 2,
-                        y: size.y,
-                    }
-                } else {
-                    Vec2 {
-                        x: size.x,
-                        y: size.y / 2,
-                    }
-                },
-            );
-            compress_block(
-                b,
-                if vert {
-                    Vec2 {
-                        x: size.x - size.x / 2,
-                        y: size.y,
-                    }
-                } else {
-                    Vec2 {
-                        x: size.x,
-                        y: size.y - size.y / 2,
-                    }
-                },
-            );
-        }
-        _ => (),
-    }
-}
-
-pub fn lit_compress(w: usize, h: usize, pixels: &[Pixel]) -> Vec<u8> {
-    let mut out = vec![];
-    for ci in 0..3 {
-        let mut ch = vec![0.; w * h];
-        for y in 0..h {
-            for x in 0..w {
-                let p = pixels[x + y * w];
-                ch[x + y * w] = match ci {
-                    0 => p.r,
-                    1 => p.g,
-                    2 => p.b,
-                    _ => unreachable!(),
-                } as f32
-            }
-        }
-
-        norm_dct_channel(w, h, &mut ch);
-        for i in 0..w * h {
-            out.extend(unsafe { std::mem::transmute::<_, [u8; 4]>(ch[i]) });
-        }
-    }
-    out
-}
-
-pub fn lit_decompress(compressed: &[u8], mut target: View<&mut Frame>) {
-    let (w, h) = (target.size.x as usize, target.size.y as usize);
-    for ci in 0..3 {
-        let mut ch = compressed[ci * w * h..(ci + 1) * w * h]
-            .chunks_exact(4)
-            .map(|v| unsafe {
-                std::mem::transmute::<_, f32>(TryInto::<[u8; 4]>::try_into(v).unwrap())
-            })
-            .collect::<Vec<_>>();
-        norm_idct_channel(w, h, &mut ch);
-        for y in 0..h {
-            for x in 0..w {
-                let p = &mut target[Vec2 {
-                    x: x as isize,
-                    y: y as isize,
-                }];
-                *(match ci {
-                    0 => &mut p.r,
-                    1 => &mut p.g,
-                    2 => &mut p.b,
-                    _ => unreachable!(),
-                }) = ch[x + y * w] as u8
-            }
-        }
-    }
-}
-
-fn norm_dct_channel(w: usize, h: usize, values: &mut [f32]) {
-    let d = DctPlanner::new().plan_dct2(w);
-    let mut temp = vec![0.; d.get_scratch_len()];
-    for c in values.chunks_exact_mut(w) {
-        d.process_dct2_with_scratch(c, &mut temp)
-    }
-
-    let mut values_trans = transpose(w, h, values);
-    let d = DctPlanner::new().plan_dct2(h);
-    let mut temp = vec![0.; d.get_scratch_len()];
-    for c in values_trans.chunks_exact_mut(h) {
-        d.process_dct2_with_scratch(c, &mut temp)
-    }
-
-    let scale = 2. / (w as f32 * h as f32).sqrt();
-    for (i, v) in values_trans.iter().enumerate() {
-        values[i] = *v * scale * 127.0
-    }
-}
-
-fn norm_idct_channel(h: usize, w: usize, values: &mut [f32]) {
-    let scale = 2. / (w as f32 * h as f32).sqrt();
-    for v in values.iter_mut() {
-        *v /= scale * 127.0
-    }
-
-    let d = DctPlanner::new().plan_dct2(w);
-    let mut temp = vec![0.; d.get_scratch_len()];
-    for c in values.chunks_exact_mut(w) {
-        d.process_dct3_with_scratch(c, &mut temp)
-    }
-
-    let mut values_trans = transpose(w, h, values);
-    let d = DctPlanner::new().plan_dct2(h);
-    let mut temp = vec![0.; d.get_scratch_len()];
-    for c in values_trans.chunks_exact_mut(h) {
-        d.process_dct3_with_scratch(c, &mut temp)
-    }
-    values.copy_from_slice(&values_trans)
-}
-
-fn transpose(w: usize, h: usize, values: &[f32]) -> Vec<f32> {
-    let mut io = 0;
-    let mut it;
-    let mut transposed = vec![0.; values.len()];
-    for row in 0..h {
-        it = row;
-        for _ in 0..w {
-            transposed[it] = values[io];
-            io += 1;
-            it += h;
-        }
-    }
-    transposed
-}
-- 
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