imageviewer

basic imageviewer written in freebasic and sdl2
supported image types or extensions:
.bmp, .gif, .gls, .jpg, .jpeg, .png, .pcx, .svg, .webp
Special support for .mp3 this will extract the
cover art from a mp3 and display it if present
and .gls aka shadertoy webgl shaders.

See https://www.shadertoy.com/ for more info.

Haptic support for keyboard, mouse and gamepad.

usage

imageviewer.exe "path to file or folder"
imageviewer.exe "path to file or folder" fullscreen
if no file or path is specified the current dir will be scanned for an image
if the folder has subfolder(s) these will be scanned for images as well
or specify a path via confconf.ini

generate .m3u: imageviewer "path to file or folder" "tag" "tagquery"
example: imageviewer.exe artist beethoven
generates the m3u file beethoven.m3u
which then can be played by imageviewer.exe beethoven.m3u\

• simple search so 195 is equivelant of ?195? or 195
• runtime in seconds is not calculated default is #EXTINF:134
• no explicit wildcard support, only searchs on one tag
• supported tags artist, title, album, genre and year

shader demo:
imageviewer.exe media\glsl

install

open zip file and copy contents to preferd folder
this application is portable.

configuration

basic config options in conf.ini
locale = <en, es, de, fr, nl>
[images]
' location images
imagefolder =
[screensaver]
' time passed before screensaver starts in seconds
screensaveinterval = 180
' options dimscreen
screensavetype = dimscreen

requirements

sdl2 2.28.5.0 or up
https://github.com/libsdl-org/SDL/releases

sdl image 2.8.1 or up
https://github.com/libsdl-org/SDL_image/releases

performance

windows 7 / windows 10(1903)
ram usage ~20MB / 20MB (pending image size)
handles ~160 / ~200
threads 11 / 16
cpu ~1 (low) / ~2
tested on intel i5-6600T

navigation

arrow     | dpad left  | mouse left : back
arrow     | dpad right | mouse right: forward
num plus  | R2         | scroll up  : zoom in
num min   | L2         | scroll down: zoom out
space     | button A   | scroll mid : reset zoom and scaletype
r / enter | button B                : rotate
z         | button Y   |            : scale type
f11                                 : toggle fullscreen
esc                                 : close application

special thanks

TwinklebearDev SDL 2.0 Tutorial Lesson 3
Tutorial translating to FreeBASIC by Michael "h4tt3n" Schmidt Nissen

djpeters for freebasic shadertoy webgl intergration
https://www.freebasic.net/forum/viewtopic.php?t=24462&hilit=shadertoy

and many thanks to various authors at shadertoy
for the demo shaders in the media\glsl folder