CODEWITHSUNDEEP
c++xcodeopenglglew
Daus
Daus

Reputation: 11

GLEW parameters completion in Xcode

Till now I've been developing OpenGL apps using GLEW in Visual Studio, but I recently switched to macOS and I'm trying out Xcode.

One very important thing to me is that I want the IDE to show me what parameters a function requires as I type it, and this worked fine on VS. Unfortunately, GLEW defines OpenGL functions with the preprocessor command #define, and Xcode doesn't seem to handle that very well as it doesn't show me the parameter list for those functions. For now I only found a couple of functions that work correctly and they are the glBindTexture(), glBindTexture() and glDrawElements() functions.

Is there a way to let Xcode now that the others( the glBufferData() function, for example) are also functions and that it should go retrieve the parameters list for me?

Upvotes: 0

Views: 283

Answers (1)

Dietrich Epp
Dietrich Epp

Reputation: 213258

The main purpose of GLEW is to provide you with function pointers to OpenGL functions. However, on macOS this is not really necessary. You can do something like this:

#if defined __APPLE__
#include <OpenGL/gl3.h>
#else
// Or however you use GLEW
#include <GL/glew.h>
#endif

This will not provide prototypes for anything newer than 4.1, however, so you would have to #ifdef those parts out. Any functions which are not available at runtime will simply be NULL, which is basically the same way that GLEW works.

The other alternative is to use an OpenGL loader which provides a more IDE-friendly header. These do exist, I think glLoadGen is an example.

Upvotes: 2

Related Questions