al_get_ope...nsion_list(3)

💖 NAME 💖

al_get_opengl_extension_list — Allegro 5 API. Bestie, this page is chillin' in the Library Functions Manual, and it’s all about asking Allegro which OpenGL extensions it’s got for your display. 🫶

✨ SYNOPSIS ✨

#include <allegro5/allegro_opengl.h>

ALLEGRO_OGL_EXT_LIST *al_get_opengl_extension_list(void)

🌸 DESCRIPTION 🌸

Okay so al_get_opengl_extension_list returns the list of OpenGL extensions supported by Allegro, for the given display. That’s the whole assignment. 💅

Allegro will keep information about all extensions it knows about in a structure returned by al_get_opengl_extension_list. It’s giving “organized bestie with receipts” energy. 🎀

For example:

if (al_get_opengl_extension_list()->ALLEGRO_GL_ARB_multitexture) {
   //use it
}

The extension will be set to true if available for the given display and false otherwise. No cap. This means to use the definitions and functions from an OpenGL extension, all you need to do is to check for it as above at run time, after acquiring the OpenGL display from Allegro. Literally check it after you got the display — that’s the move. ✨

Under Windows, this will also work with WGL extensions, and under Unix with GLX extensions. Cross-platform icon behavior. 🌈

In case you want to manually check for extensions and load function pointers yourself (say, in case the Allegro developers did not include it yet), you can use the al_have_opengl_extension(3) and al_get_opengl_proc_address(3) functions instead. DIY main character energy, iykyk. 🔥

Note: the exact extensions exposed depend on how Allegro was compiled. It is recommended to use al_have_opengl_extension(3) and al_get_opengl_proc_address(3) for the most stable experience. Bestie, pls don’t skip this — stable experience is the goal. 🎀

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Cute sign-off: source/version is the Allegro reference manual, page al_get_ope...nsion_list(3). The footer has no date, so no fake timestamp from me — just vibes and accurate API facts. 💜