nico

#!/bin/bash

# Assumes:
# * you have a remote 'ladybird' pointing to 
#   https://github.com/LadybirdBrowser/ladybird.git"
# * both origin/master and ladybird/master are up-to-date
# * you're on a branch where you want the cherry-picked commits to appear
#
# Example invocation:
#     Meta/cherry-pick-ladybird-pr.sh 242

nico

NEVER_INLINE static ErrorOr<void> write_image_data(LittleEndianOutputBitStream& bit_stream, Bitmap const& bitmap, PrefixCodeGroup const& prefix_code_group)
{
    // Image data.
    for (ARGB32 pixel : bitmap) {
        u8 a = pixel >> 24;
        u8 r = pixel >> 16;
        u8 g = pixel >> 8;
        u8 b = pixel;

        TRY(prefix_code_group[0].write_symbol(bit_stream, g));

nico

NEVER_INLINE static ErrorOr<void> write_image_data(LittleEndianOutputBitStream& bit_stream, Bitmap const& bitmap, bool all_pixels_are_opaque)
{
    for (ARGB32 pixel : bitmap) {
        u8 a = pixel >> 24;
        u8 r = pixel >> 16;
        u8 g = pixel >> 8;
        u8 b = pixel;

        // We wrote a huffman table that gives every symbol 8 bits. That means we can write the image data
        // out uncompressed –- but we do need to reverse the bit order of the bytes.

nico

// A short demo program that uses libjpeg to write cmyk/ycck jpeg files.
// It's possible to write ycck jpegs using ImageMagick's convert and Photoshop's Save As.
// I haven't found a good way to write subsampled true cmyk jpegs using any of cjpeg, convert, Photoshop, or GIMP though.
// (GIMP 2.99.16 has in-progress cmyk saving support, and by picking 4:2:0 subsampling it writes a 2111 CMYK file.
// But 2111 CMYK files don't make any sense, and 4:2:0 is a YCC term and applying it to CMYK is fairly silly.
// Anyways, I wasn't able to create a 2112 CMYK file, which is what is sometimes seen in pratice -- not that
// having C have more resolution than MY makes a ton of sense either.)
//
// compile with:
//     clang++ -std=c++11 write_cmyk_ycck_jpegs.cc -I ~/Downloads/libjpeg-turbo-3.0.1 -I ~/Downloads/libjpeg-turbo-3.0.1/build -ljpeg -L ~/Downloads/libjpeg-turbo-3.0.1/build 

nico

// =============================================================================
// XNU kperf/kpc demo
// Available for 64-bit Intel/Apple Silicon, macOS/iOS, with root privileges
//
//
// Demo 1 (profile a function in current thread):
// 1. Open directory '/usr/share/kpep/', find your CPU PMC database.
//    For M1 (Pro/Max), the database file is '/usr/share/kpep/a14.plist'.
// 2. Select a few events that you are interested in,
//    add their names to the `profile_events` array below.

nico

% cat minimal.txt 
package "example"
version "0.0.1"

% ~/Downloads/gengetopt-2.23/src/gengetopt < minimal.txt
% cat cmdline.h
/** @file cmdline.h
 *  @brief The header file for the command line option parser
 *  generated by GNU Gengetopt version 2.23
 *  http://www.gnu.org/software/gengetopt.

nico

  File "quine.py", line 1
    File "quine.py", line 1
    ^
IndentationError: unexpected indent

nico

The semantics of inline are one of the areas where C and C++ are pretty different. This post is about the C++ semantics, but the history is interesting, so here's a short summary of it.

The meaning of "inline" is intuitively easy to understand: It gives the compiler a hint that it'd be nice if a function could be inlined. It gets a bit complicated because of two issues:

1. If the function ends up not being inlined, where should the definition of the function be emitted?
2. If the inline function contains a static local variable, should that be inlined? Should there be several copies of the static local, or just one?

nico

General Punctuation
U+201x ‐ ‒ – — ― ‖ ‗ ‘ ’ ‚ ‛ “ ” „ ‟
U+202x † ‡ • ‣ ․ ‥ … ‧ 
U+203x ‰ ‱ ′ ″ ‴ ‵ ‶ ‷ ‸ ‹ › ※ ‼ ‽ ‾ ‿
U+204x ⁀ ⁁ ⁂ ⁃ ⁄ ⁅ ⁆ ⁇ ⁈ ⁉ ⁊ ⁋ ⁌ ⁍ ⁎ ⁏
U+205x ⁐ ⁑ ⁒ ⁓ ⁔ ⁕ ⁖ ⁗ ⁘ ⁙ ⁚ ⁛ ⁜ ⁝ ⁞

Arrows
U+219x ← ↑ → ↓ ↔ ↕ ↖ ↗ ↘ ↙ ↚ ↛ ↜ ↝ ↞ ↟
U+21Ax ↠ ↡ ↢ ↣ ↤ ↥ ↦ ↧ ↨ ↩ ↪ ↫ ↬ ↭ ↮ ↯

nico

@ech off

REM Creates "myroot" which can be used with `clang-cl /winsysroot myroot`

setlocal

REM Adjust this one accordingly:
set VSInstallDir="%ProgramFiles(x86)%\Microsoft Visual Studio\2019\Professional"
set WinSdkDir="%ProgramFiles(x86)%\Windows Kits"