sizing nyan to 80x25

looking good

nyan/parse.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+
+import re
+import sys
+
+def parsecolor(line: str) -> str:
+    m = re.match(r'.*<TD +BGCOLOR=#(?P<rgb>[0-9a-f]*)>.*', line)
+    if not m:
+        raise Exception(f"did not parse: {line}")
+    return m['rgb']
+
+assert(parsecolor('<TD  BGCOLOR=#aabbcc>') == 'aabbcc')
+
+with open(sys.argv[1], 'r') as f:
+    lines = f.readlines()
+
+html = [parsecolor(line) for line in lines if 'BGCOLOR' in line]
+
+translate = {
+    '000000': 'Black',
+    '0200ff': 'Blue',
+    'ff99ff': 'LightMagenta',
+    '999999': 'LightGray',
+    'ffcc99': 'Brown',
+    'ff9999': 'LightRed',
+    'ff3399': 'Magenta',
+    'ffffff': 'White'
+}
+
+print(", ".join([translate[rgb] for rgb in html]))

nyan/src/main.rs

@@ -28,14 +28,10 @@ fn main() -> Status {
             info!("supported mode {}: {} {}", m.index(), m.columns(), m.rows());
         }
 
-        for (i, color) in nyan::NYAN_40X25.iter().enumerate() {
-            stdout.set_color(*color, background)?;
+        for color in nyan::NYAN_80X25 {
+            stdout.set_color(color, background)?;
             let mut s = uefi::CString16::new();
             s.push(BLOCKELEMENT_FULL_BLOCK);
-            if i % 40 == 0 {
-                s.push(CARRIAGE_RET);
-                s.push(NEWLINE);
-            }
             stdout.output_string(&s)?;
         }
         Ok(())

putting_together/README.md

@@ -144,8 +144,10 @@ But let me take a note for later:
 The proportions of those two nyan cats look quite good.
 The `BLOCKELEMENT_FULL_BLOCK` is not a perfect square.
 When downsizing nyan cat, we assumed we are drawing it as pixels.
-But `BLOCKELEMENT_FULL_BLOCK` **TODO**
+But `BLOCKELEMENT_FULL_BLOCK` **TODO** 8x19 on qemu or 16x31 on my Thinkpad.
+For simplicity, let's assume the ratio is 1:2.
+**TODO** scale original image, without preserving aspect ratio to 80x25! 80x49 would be preserving aspect ratio.
 Start over.
 Can do animation while at it.
 
-[back](../)
+[back](../)