YADL

Yet Another Drawing Library

Use cases

• Quick prototyping (images, animations)
• Embedded devices (pure cpu rendering, no gpu required)

Features

• Simple to use
• Alpha blending
• Simple shapes (lines, rectangles, circles, triangles)
• Text rendering and font loading
• Loading, saving images
• Animations and export to gif
• Antialiased circles and lines
• Graphical effects (blur, grayscale, invert)
• Image resizing
• and other useful stuff

Todo

• Multithreading

Examples

• see classic examples, for examples that generate images, and sdl examples for live examples that use sdl2.

(example above uses 2 triangles and texture mapping, also logo was resized to 250x250, so it looks a bit squished. See texture_mapping_example.cpp

Quick Start

Build library and all examples

$ mkdir build && cd build
$ cmake ..
$ make -j

Usage

#include <yadl/yadl.hpp>

int main(int argc, char const *argv[])
{
    using namespace yadl;

    Canvas canvas(500, 500);
    canvas.Clear(Color::Dark);
    Context ctx(canvas);
    ctx.SetColor(Color::Red).SetPosition(canvas.GetCenterX(), canvas.GetCenterY());
    
    int radius = 150;
    shape::DrawFilledCircleAA(ctx, radius); // AA stands for antialiased

    io::SaveAsPNG("circle.png", canvas);
    return 0;
}

This code can be found in circle_example.cpp

Output:

Dependencies

• FreeType (2.13+)
• libpng
• SDL2 (2.0.18+) for sdl examples
• GLM for cube example

Used libraries

• stb_image
• stb_image_write
• gif-h
• imgui (for sdl examples)
• tinyobjloader

Assets

• Cat photo (Public Domain), resized to 25% and converted to png.
• Font Roboto Condensed
• C++ logo (Public Domain) resized to 250x250px
• Box texture
• Wet Floor Sign model