Introduce OpenGL-based renderer #53
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added 6 commits
February 27, 2024 12:01
add first version fix scalings add more rendering rework structure add undo/redo add brush tool add arrow gl add rect gl add text rendering results add text rendering add marker add crop add blurring remove renderer remove draw functions clean refactor clean add basic rendering support add scale_factor add saving and clipboard fix crash clean refacto clean clean up, refactor refactor refactor improve handle sizing rework scale remove pangocairo calc everything in f32 refactor more refactor celan up
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the rendering currently works on the CPU only and is bound by that. Especially rendering 4k annotations is very slow to the point it becomes unusable.
We replace the cairo-based renderer by an OpenGL based renderer with femtovg to get a butter-smooth rendering even for 4k images while maintaining the quality...
solves #47 and #44