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This is the readme for the portable fork of EoSD. For the readme of the decomp project, see here.

EoSD-portable is a port of Touhou 6 using SDL2 and OpenGL (with a more general renderer abstraction layer hopefully on the way). This enables theoretical portability to any system supported by SDL2, with Linux, Windows, and macOS in particular being known to work. Builds for the BSDs and other Unices are also almost certainly possible, but may require some slight modifications to the build system.

Platform Requirements

• SDL2, SDL2-image, and SDL2-ttf support
• C++20 standard library support
• A little endian architecture (though big endian support is currently being worked on)
• OpenGL ES 1.1, OpenGL 1.3, or GL 2.1 / GL ES 2.0 / WebGL support

Dependencies

EoSD-portable has the following dependencies:

• SDL2
• SDL2_image
• SDL2_ttf
• libasound (Optional and Linux-only, enables MIDI support. This will almost always be present as part of a desktop distro.)

On Windows and macOS, MIDI support uses the system APIs and needs no extra dependencies.

In addition, building uses premake5 and a compiler that supports C++20.

Building

In the repository root directory, run premake5 with the desired build system as an argument (a list can be seen by running premake5 --help). This will output the build files to the build directory, and then compilation may be done with the desired build system.

Build Options (Use with Premake Invocation)

--no-asoundlib: On Linux, doesn't build MIDI support. Removes libasound as a dev and runtime dependency --use-c23-embed: Uses #embed for resource inclusion instead of a lua script in the Premake file.

Build Example (Debian-based Linux)

Obtain dependencies:

sudo apt install build-essential libsdl2-dev libsdl2-image-dev libsdl2-ttf-dev libasound2-dev

Generate makefile:

premake5 gmake

Compile:

cd build && make -j16

Build Example (macOS)

Install the Xcode Command Line Tools (provides the compiler), if not already present:

xcode-select --install

Obtain dependencies (using Homebrew):

brew install premake sdl2 sdl2_image sdl2_ttf

Generate makefile:

premake5 gmake

Compile:

cd build && make -j16

Use

EoSD-portable is designed to be a drop-in replacement for the vanilla EoSD binary. You will also need to add a font to your game directory with the filename msgothic.ttc. This may be the actual MS Gothic, taken from a Windows machine, or a compatible font such as Kochi Gothic. EoSD-portable uses the Japanese filenames (e.g. 紅魔郷CM.DAT, 東方紅魔郷.cfg). English and other patches, static or thcrap, do not currently work. A Japanese locale is not required.

Decomp Credits

We would like to extend our thanks to the following individuals for their invaluable contributions:

• @EstexNT for porting the var_order pragma to MSVC7.