Goals:
- Display an image
Non-goals:
- Anything else
There's no screenshot. It's just a plain window with an image inside. Drag to pan view. Scroll to zoom. To open an image provide the path as a first command line argument or drag and drop the file onto the exe.
Other stuff:
- Windows only
- 64-bit only
- C language
- No libraries except stb_image.h
- No CRT
- Requires OpenGL 4.6 for no good reason
- Pixel art friendly scaling
- Supports png, jpeg, bmp and gif (no animations)
- Window size adjusts to image size, unless it would be too big
You need MSVC. Run Build.bat. If your vcvars64.bat location is different than C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat you need to change the path inside the batch file.
I made it so I can actually use it instead of the Photos app. It's already more usable – it doesn't show a black screen for a second after I open anything, doesn't constrain zooming or panning and doesn't blur pixel art. Still it could use some minor cleanup. Maybe in the future I will add the ability to use left and right arrow keys to go through images in the same directory.
Also:
- C is cool, would recommend
- We can avoid CRT, but then you almost cannot use any other library – wouldn't recommend
- Setting up modern OpenGL in Windows is funny
- Manually loading OpenGL function pointers is a chore even for a small application – just use glad