load_bitmap(3) Allegro manual load_bitmap(3)NAMEload_bitmap - Loads any supported bitmap from a file. Allegro game pro‐
gramming library.
SYNOPSIS
#include <allegro.h>
BITMAP *load_bitmap(const char *filename, RGB *pal);
DESCRIPTION
Loads a bitmap from a file. The palette data will be stored in the sec‐
ond parameter, which should be an array of 256 RGB structures. At
present this function supports BMP, LBM, PCX, and TGA files, determin‐
ing the type from the file extension.
If the file contains a truecolor image, you must set the video mode or
call set_color_conversion() before loading it. In this case, if the
destination color depth is 8-bit, the palette will be generated by
calling generate_optimized_palette() on the bitmap; otherwise, the
returned palette will be generated by calling generate_332_palette().
The pal argument may be NULL. In this case, the palette data are simply
not returned. Additionally, if the file is a truecolor image and the
destination color depth is 8-bit, the color conversion process will use
the current palette instead of generating an optimized one.
Example:
BITMAP *bmp;
PALETTE palette;
...
bmp = load_bitmap("image.pcx", palette);
if (!bmp)
abort_on_error("Couldn't load image.pcx!");
...
destroy_bitmap(bmp);
RETURN VALUE
Returns a pointer to the bitmap or NULL on error. Remember that you are
responsible for destroying the bitmap when you are finished with it to
avoid memory leaks.
SEE ALSOload_bmp(3), load_lbm(3), load_pcx(3), load_tga(3), destroy_bitmap(3),
save_bitmap(3), register_bitmap_file_type(3), set_color_depth(3),
set_color_conversion(3), generate_optimized_palette(3), gener‐
ate_332_palette(3)Allegro version 4.4.2 load_bitmap(3)
