ALLEGRO_PRIM_BUFFER_FLAGS man page
ALLEGRO_PRIM_BUFFER_FLAGS — Allegro 5 API
#include <allegro5/allegro_primitives.h> typedef enum ALLEGRO_PRIM_BUFFER_FLAGS
Flags to specify how to create a vertex or an index buffer.
- ALLEGRO_PRIM_BUFFER_STREAM - Hints to the driver that the buffer is written to often, but used only a few times per frame
- ALLEGRO_PRIM_BUFFER_STATIC - Hints to the driver that the buffer is written to once and is used often
- ALLEGRO_PRIM_BUFFER_DYNAMIC - Hints to the driver that the buffer is written to often and is used often
- ALLEGRO_PRIM_BUFFER_READWRITE - Specifies that you want to be able read from this buffer. By default this is disabled for performance. Some platforms (like OpenGL ES) do not support reading from vertex buffers, so if you pass this flag to
al_create_index_bufferthe call will fail.
Allegro reference manual