extern Palette4 grp_palette;

// Overwrites [grp_palette] with [pal].
void grp_palette_set_all(const Palette4& pal);

// Loads [grp_palette] from the .GRP file with the given [fn], and updates the
// hardware palette with it. Returns garbage.
int grp_palette_load_show(const char *fn);

// Sane version of grp_palette_load_show(). Returns 0 on success, 1 on file
// opening failure.
int grp_palette_load_show_sane(const char *fn);

// Displays the .GRP image loaded from [fn] on the currently accessed VRAM
// page, using the current hardware palette. Returns the return value from
// PiLoad.
int grp_put(const char *fn);

// Like grp_put(), but sets the hardware palette to the one in [fn]'s header.
int grp_put_palette_show(const char *fn);

// Like grp_put(), but treats color #15 as transparent.
int grp_put_colorkey(const char *fn);

#if (BINARY == 'E')
	extern int grp_palette_tone;

	// Sets colors 1 - 15 (excluding color 0!) of z_Palettes and the hardware
	// palette to [grp_palette] at the given [tone].
	// The toning algorithm is equivalent to master.lib's palette_settone().
	void pascal grp_palette_settone(int tone);

	// Equivalent to the master.lib functions, but based on the [grp_palette].
	void pascal grp_palette_black_out(unsigned int frames);
	void pascal grp_palette_black_in(unsigned int frames);
	void pascal grp_palette_white_out(unsigned int frames);
	void pascal grp_palette_white_in(unsigned int frames);
#endif