12 March 2022

Big World Map template for free

I made big Cahill-Keyes projection template map here:
https://archive.org/details/bmng_1px2500m_worldmap (10MB, 16000x6277 RGBA webp)
rev1 https://archive.org/details/bmng-ck-16k-1px2700m (15MB, 16000x7524 RGBA webp / RGB jpg)
rev2 https://archive.org/details/megamap (58MB Megamap, 68MB Wegamap Jpeg only, PNG is too big)

It may not be suitable for printing at all considering how dark it is, though the original BMNG was even darker but hey thats how our earth looks like. It is intended to be the biggest relatively proportional (globe-like) map viewable by 32-bit image viewer on computer :) and you can start ask yourself where is ukraine?

Anyone could use it as background and start laid textual information over it, and then export it to pdf. The free MS expression design can do that nicely, but the image need to be converted to png first.

Big thanks to https://github.com/jkunimune15/Map-Projections for providing CK map generator! back then it was tedious process to generate one using perl script.


First revision released:
- typo of scale, 21600/16000 * 2000 = 2700 duh
- add antarctica bedrock map at 0m (sea level) in grey shade
- make population shade more visible
- fix bathy error due to blending mode
- add land attachment for Antarctica Greenland, Russia, Iceland, Solomon and Kerguelen per keyes' megamap spec but not for closely separated land

Second revision released:
- target 1px=1000000 hence "mega"-map now, sadly it getting harder to open the file on 32-bit Windows.
- redo relief bump and shadow with more exaggerated downsampled 15-arcsecond SRTM dataset
- use SEDAC 2020 30 arc-second dataset for population density
- added river "hint" in glowing green
- redo more accurate sealevel bedrock map of antarctica (it may not bigger than australia)

Tools used:
gdal, paintdotnet (and many of plugins), expression design and vips.

05 January 2022

C++ standard, Runtime and XP

C++ standard has been evolving much more like Java, or rather no more like C evolution, C++20 module remind me of Java 11 it make C++ "appreance" no more like what it used to be... I wonder how far Windows XP could get the lastest C++ standard toolchain. Lets revisit C++ standard progression

C++98 (formally C++03) has been what XP supported by Microsoft (with its peculiarity and quirks) from the free VS2005 to 2010 express editon.

C++11: GCC 5 (2015) Clang 3.8 and Embarcadero BCC 10.1 (2016) MSVC 2015
C++14: GCC 5 (2015) Clang 3.4 (2014) MSVC 2017
C++17: GCC 11 (2021) still missing from_chars FP mode because Win32 has no uselocale()
             MSVC 2019 16.4 shared_mutex (not available in XP target, only C++14 shared_timed_mutex)
C++20: MSVC 2019 16.10 (2021) since 16.8 its runtime breaks XP for the first time (last: 14.27.29114)

While those compilers arrive at the same state around 2015, now we see Clang lagged behind, GCC is struggling and MSVC is geting faster and faster.

In Windows XP context though, GCC seems the only hope for any "sort of" C++20 support considering they have the principle of having as cross-platform as possible rather than as native as possible codebase. Clang libc++already break XP when implementing C++17FS.

How about C runtime?
Now called UCRT, apparently it also strangely break XP too. Being versioned as Windows SDK's the last XP compatible is 10.1.18362.1, starting with 10.1.19041 ucrtbase.dll through api-ms-win-core-memory-l1-1-0.dll redirector is asking dll.VirtualAlloc, dll.VirtualQuery and dll.VirtualProtect from kernel32.dll which previously not prefixed with "dll." weird... Note that Visual C++ runtime installer usually bundled with much older 10.0.10586 UCRT (from Windows 10 1511).

04 January 2022

Strange Adventures in Infinite Space SDL edition

 SAIS is unusual space strategy  game for its time, it opensourced in 2005 and then modernized at github as well as no longer run on XP. It was one of many tiny XP-era games that I collected. I take the SDL1 version source and compiled it, put the full game data and noise-filter the sound files to make it less annoying... is that what the author thinks of void space noise :(. Since this one is SDL based it is now run windowed! yay.

download: sais-1.5.0_sdl1.7z (2.8 MB)

01 January 2022

TTFEdit simple true type outline editor

This little gem is made by japanese programmer Yuno dated back to 2003. This is an opensource software, its borland c++ source sadly never archived : http://uri.sakura.ne.jp/~cosmic/yuno/download/ttfeditsrc.lzh. You could open and edit ttf font or create it from scratch, there is also reference image feature that help you trace existing bitmap text sample or hand-drawn font.

I have bing translate this app into english (using resource hacker). As the name implied only ttf format supported, no fancy modern web fonts format, no opentype just TTF.

TTFEdit show Panose spec property

This outline editor is nice companion to Microsoft Visual TrueType.
Note: You can't directly open font from %WINDIR%\Fonts from the open file dialog. Copy it somewhere else first.

download: https://sourceforge.net/projects/xpitory/files/static-builds/ttfedit.7z/download (400KB)