A C++ canvas implementation.

Currently this library is used to create OpenGL textures with an interface which is based on HTML5 Canvas.

On Windows, rendering is done using GDI+, Cairo is used on Linux, Quartz2D is used on iOS and Android Canvas is used on Android.

Fluent programming style is supported in this implementation, even though it's not available in the original HTML5 Canvas:

context->strokeStyle("#ff0000").moveTo(10, 10).lineTo(20, 20).stroke();

auto context = new ContextCairo(width, height);
context->moveTo(10, 10);
context->lineTo(20, 20);
context->strokeStyle = "#ff0000";
context->stroke();

For input images, only PNG-files are supported.

Quality of clipping is very bad since it's done per pixel with no anti-aliasing.

On Android the canvas is implemented using JNI, which is used to call Java methods. Due to this, performance might not be optimal.

• Mikael Rekola
• Mikko Suni (for Android support)