How to use GLEW from Kotlin? Functions like `glCre...

# kotlin-native

[Matej Kormuth]

How to use GLEW from Kotlin? Functions like glCreateShader are defined with preprocessor macro: #define glCreateShader GLEW_GET_FUN(__glewCreateShader) where macro is defined as #define GLEW_GET_FUN(x) x but in klib there is only __glewCreateShader variable

public var __glewCreateShader: glew.PFNGLCREATESHADERPROC? /* = kotlinx.cinterop.CPointer<kotlinx.cinterop.CFunction<(glew.GLenum /* = kotlin.UInt */) -> glew.GLuint /* = kotlin.UInt */>>? */ /* compiled code */

and not the function.

[msink]

https://github.com/JetBrains/kotlin-native/issues/1974

[Dominaezzz]

If you can't be arsed to build glagogen.

OGL.kt

[Matej Kormuth]

@Dominaezzz I am already compiling GLEW and GLFW using cmake as part of build process, as I want it to be completely automatic. How was the file you posted created?

[Matej Kormuth]

@msink So there's no easy way to just integrate GLEW to kotlin/native build. Either rewrite the library to be supported by cinterop or use different library/tool (galogen for example), or write custom one. Do I understand it correctly?

[Dominaezzz]

I wrote a script to generate it from the official OpenGL spec (gl.xml). Haven't published it anywhere though. Might make a plugin.

[msink]

AFAIK for now galogen is the only working solution, if someone can share similar tool but written in Kotlin - would be great.