Update of "Beyond AndroWish"
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Overview

Artifact ID: 5cd664389f79373c36d48fa1a28afb3089a866b3
Page Name:Beyond AndroWish
Date: 2019-02-17 11:40:44
Original User: chw
Parent: fc089c224c6644fdc6905b9e7a93831c6c8f9cb9
Content

Some subdirectories of AndroWish have a ready-to-build-then-use Debian infrastructure built in. That allows to build Debian packages easily e.g. on a Raspbian distribution running on your Raspberry Pi:

    cd .../jni/SDL2 ; dpkg-buildpackage -tc -uc ; dpkg -i ../libsdl2*.deb
    cd .../jni/tcl ; dpkg-buildpackage -tc -uc ; dpkg -i ../sdltcl*.deb
    cd .../jni/sdl2tk ; dpkg-buildpackage -tc -uc ; dpkg -i ../sdl2tk*.deb
    /opt/sdltk86/bin/sdl2wish8.6

Building some components of AndroWish for the Windows OS family is possible, too, by using cross compilation on a Linux system. More information can be found in undroidwish.

The resulting sdl2wish8.6, sdl2wish86.exe, or undroidwish binaries support additional command line options to control certain SDL features. Important: these options must be specified on the command line after the optional script to be executed:

-sdlfullscreen

Make the SDL window (the root window for Tk) into a fullscreen window.

-sdlresizable

Allow resizing of the SDL window.

-sdlnoborder

Make the SDL window borderless, i.e. without window manager decorations.

-sdlheight pixels

Set the height of the SDL window to pixels.

-sdlwidth pixels

Set the width of the SDL window to pixels.

-sdlrootheight pixels

Set the height of the root window (as seen by Tk) to pixels. If not set, the root window's size is equal to the SDL window size.

-sdlrootwidth pixels

Set the width of the root window (as seen by Tk) to pixels. If not set, the root window's size is equal to the SDL window size.

-sdlxdpi dpi

Set the dots per inch ratio for the X dimension to dpi. If both, -sdlxdpi and -sdlydpi are not set, the default is approx. 75 dpi. If only one dimension is set (-sdlxdpi or -sdlydpi), that value is taken as overall dots per inch ratio.

-sdlydpi dpi

Set the dots per inch ratio for the Y dimension to dpi. If both, -sdlxdpi and -sdlydpi are not set, the default is approx. 75 dpi. If only one dimension is set (-sdlxdpi or -sdlydpi), that value is taken as overall dots per inch ratio.

-sdlnogl

Force using the software renderer. This turns OpenGL usage off.

-sdllog level

Set the minimum log level to be shown in SDL log message. level must be a positive integer.

-sdlicon filename

Set the SDL root window icon to the BMP image from filename.

-sdlnosysfonts

Don't search for and register system fonts. This can reduce startup time significantly.

-sdlopacity value

Set the initial opacity of the SDL root window. value must be given as positive integer percentage.

-sdlswcursor

Force use of a software cursor texture. Useful, when no proper hardware cursor support is available, e.g. in Haiku using the OpenGL render driver.

Some SDL runtime switches must be specified early by setting environment variables. All these switches are documented in the SDL_hints.h header file. The most important are:

SDL_VIDEODRIVER

A string selecting the video driver, use it to enable the jsmpeg video driver.

SDL_RENDER_DRIVER

A string selecting the SDL renderer. Normally chosen automatically but sometimes it can be necessary to explicitly turn on the software renderer. Other possible values depend on how SDL was built, e.g opengl, opengles2 etc.