Multi-page sprite atlas: random-access cell blitting from a grid. More...

#include "n_common.h"
#include "n_log.h"
#include "allegro5/allegro.h"

Include dependency graph for n_atlas.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	N_ATLAS
	a set of atlas pages addressed as (page, cell index) More...
struct	N_ATLAS_PAGE
	one atlas page: a bitmap holding cols*rows equally sized cells More...

Functions
int	n_atlas_cell_rect (const N_ATLAS atlas, size_t page, size_t index, float sx, float sy, float sw, float *sh)
	compute the source rectangle of one cell
void	n_atlas_destroy (N_ATLAS **atlas)
	destroy an atlas and every bitmap it owns
int	n_atlas_draw_cell (N_ATLAS *atlas, size_t page, size_t index, float x, float y, float size)
	draw one cell as a size x size square
int	n_atlas_max_bitmap_size (void)
	get the largest bitmap dimension this display can hold
int	n_atlas_page_ready (const N_ATLAS *atlas, size_t page)
	test whether a page holds a usable bitmap
int	n_atlas_set_page (N_ATLAS atlas, size_t page, const void bytes, size_t len, const char *ext, uint16_t cols, uint16_t rows)
	decode bytes into one atlas page
N_ATLAS *	new_n_atlas (size_t npages)
	allocate an atlas holding npages empty pages

Detailed Description

Multi-page sprite atlas: random-access cell blitting from a grid.

Definition in file n_atlas.h.

Data Structures