al_create_vertex_buffer(3alleg5)

💖 al_create_vertex_buffer — bestie's guide to the Allegro 5 API 💖

okay so this is a page from the Allegro reference manual (that's the 3alleg5 manual name, for the citation girlies 🎀), and today we're talking about al_create_vertex_buffer. buckle up, it's giving graphics programming 💅

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✨ SYNOPSIS ✨

#include <allegro5/allegro_primitives.h>

ALLEGRO_VERTEX_BUFFER* al_create_vertex_buffer(ALLEGRO_VERTEX_DECL* decl,
   const void* initial_data, int num_vertices, int flags)

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🌸 DESCRIPTION 🌸

okay so this function creates a vertex buffer. that's the whole job, bestie. ✨

it can return NULL if the buffer could not be created — for example if the system only supports write-only buffers. so like, it might just ghost you 😭

note, and this is important: this is an advanced feature, and it's often unsupported on lower-end video cards. be extra mindful of this function failing, and make arrangements for fallback drawing functionality, or at least a nice error message for users with such lower-end cards. do not just rawdog this call and assume it works, fr fr 🙈

parameters: (aka the receipts 🧾)

• decl — the vertex type that this buffer will hold. passing NULL implies that this buffer will hold ALLEGRO_VERTEX(3alleg5) vertices. no cap. 💫
• initial_data — the memory buffer to copy from, to initialize the vertex buffer. it can be NULL, in which case the buffer is uninitialized. (yes bestie, that means it's a mystery box 🎁)
• num_vertices — the number of vertices the buffer will hold. count them. 👑
• flags — a combination of the ALLEGRO_PRIM_BUFFER_FLAGS(3alleg5) flags specifying how this buffer will be created. and listen: passing 0 is the same as passing ALLEGRO_PRIM_BUFFER_STATIC. periodt. 💅

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⭐ SINCE ⭐

5.1.3 — so she's been iconic for a while now 💜

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🦋 SEE ALSO 🦋

• ALLEGRO_VERTEX_BUFFER(3alleg5) 🌈
• al_destroy_vertex_buffer(3alleg5) 💀 (yes you have to clean up after yourself, bestie, that's the whole vibe)

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and that's the page, bestie!! 🫶 this one lives in the Allegro reference manual, filed under al_create_vertex_buffer(3alleg5). go make something slay ✨💖🎀