al_is_compatible_bitmap(3alleg5)

✨ NAME ✨

al_is_compatible_bitmap — it's giving Allegro 5 API 💖 (yes bestie, this is the one, the literal function we're about to obsess over)

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🌸 SYNOPSIS 🌸

#include <allegro5/allegro.h>

bool al_is_compatible_bitmap(ALLEGRO_BITMAP *bitmap)

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🦋 DESCRIPTION 🦋

okay so picture this 🫶 — D3D and OpenGL both let you share a texture in a way where it can be used for multiple windows. iconic behaviour, truly. BUT ✋ every ALLEGRO_BITMAP that you make with al_create_bitmap is usually tied to a single ALLEGRO_DISPLAY. like it picked a fave and committed, no cap.

so this function is your lil vibe check 💅 — you use it to find out if the bitmap is compatible with the given display, even if that's a completely different display from the one it was originally created with. slay.

• returns true if the bitmap is compatible — meaning things like a cached texture version can be used ✨
• returns false otherwise — which lowkey means blitting in the current display is gonna be slow 😭

fr fr, the only time this function is useful is if you're running multiple windows and you need accelerated blitting of the same bitmaps to both. that's the moment. that's the assignment. periodt.

and the return value breakdown, because we keep receipts 📝:

• true → the bitmap is compatible with the current display 👑
• false → it's not 🥲
• and if there is no current display at all? false is returned. the answer is no, babe. no display, no compatibility. 🙈

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that's the whole page, bestie — go forth and blit responsibly 🌈✨. this lil tutorial moment came to you from the Allegro reference manual, specifically the al_is_compatible_bitmap(3alleg5) page 🎀💜