Caller-owned bump arena backing a single image decode. More...

#include <reflow_image.h>

Data Fields
uint8_t *	base
	Caller-owned scratch buffer.
size_t	cap
	Scratch capacity, bytes.
size_t	offset
	Current bump offset.
size_t	live
	Live (allocated, not freed) blocks.

Detailed Description

Caller-owned bump arena backing a single image decode.

A linear bump allocator over base[0..cap) with a live-block count: stb_image's allocations bump offset, each free decrements live, and the arena auto-resets to empty when live reaches 0 – so it fully drains after each decode with no caller bookkeeping and no fragmentation.

Invariant: offset <= cap.

Definition at line 41 of file reflow_image.h.

Field Documentation

◆ base

uint8_t* ra8_img_arena_t::base

Caller-owned scratch buffer.

Definition at line 42 of file reflow_image.h.

Referenced by ra8_img_arena_malloc().

◆ cap

size_t ra8_img_arena_t::cap

Scratch capacity, bytes.

Definition at line 43 of file reflow_image.h.

Referenced by ra8_img_arena_malloc().

◆ live

size_t ra8_img_arena_t::live

Live (allocated, not freed) blocks.

Definition at line 45 of file reflow_image.h.

Referenced by internal_arena_release(), ra8_img_arena_bind(), ra8_img_arena_free(), and ra8_img_arena_malloc().

◆ offset

size_t ra8_img_arena_t::offset

Current bump offset.

Definition at line 44 of file reflow_image.h.