c++ html5,javascript - Emscripten - C++ with pure html5 canvas support (not WebGL) - Stack Overflow

转载于 2021-06-16 02:24:02 发布 · 202 阅读

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#c++ html5

本文探讨了如何通过Emscripten在C++中访问Canvas 2D上下文，实现绘制简单形状和路径的功能。作者希望避免依赖SDL，并寻求将C++代码编译为JavaScript的方法，以直接利用Canvas API而非 WebGL。

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Is there any way of accessing canvas 2D context under C++ when using emscripten?

I'd like to be able to draw simple shapes/paths using canvas' api functions like lineTo, fillRect1d done, etc. (so basically use any of the functions listed here.

I will point out that I would prefer not to rely on SDL, but if it's the only reliable approach then is there a way to force it to compile to JavaScript so that the result won't use WebGL, but basic canvas api?

Or should I maybe do a simple mapping of the api functions following this suggestion: Calling JavaScript From C/C++ ?

Until anyone shares a better solution I will most likely do the mapping and share it here as soon as I'm done with it.