bulcommn.c File Reference

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Detailed Description

Various functions used in many tools for Bullfrog games.

Purpose:

Common procedures for Bullfrog game tools. These includes bitmaps r/w functions compression detection and similar.

Comment:

None.

Author:

Tomasz Lis

Date:

10 Mar 2005 - 22 Jul 2008

Copying and copyrights:

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Definition in file bulcommn.c.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "lbfileio.h"
#include "bulcommn.h"

Go to the source code of this file.

Functions
short	write_bmp_fn_idx (const char *fname, int width, int height, const unsigned char *pal, const char *data, int red, int green, int blue, int mult)
	Writes indexed colour bitmap into file with given name.
short	write_bmp_fp_idx (FILE *out, int width, int height, const unsigned char *pal, const char *data, int red, int green, int blue, int mult)
	Writes indexed colour bitmap into opened file.
short	write_bmp_fn_24b (const char *fname, int width, int height, const char *data)
	Writes indexed colour bitmap into file with given name.
short	write_bmp_fp_24b (FILE *out, int width, int height, const char *data)
	Writes indexed colour bitmap into opened file.
int	read_palette_rgb (unsigned char *palette, const char *fname, unsigned int nColors)
	Reads RGB palette file into preallocated buffer.
unsigned int	rnd (const unsigned int range)
	Returns a random number within given range.
int	rnc_compressed_buf (unsigned char *buff)
	Gives version of the RNC file.
int	rnc_compressed_file (FILE *fp)
	Gives version of the RNC file.
Variables
char const *	RNC_SIGNATURE_STR = "RNC\001"
	RNC compression magic identifier, as string.

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Function Documentation

int read_palette_rgb	(	unsigned char *	palette,
		const char *	fname,
		unsigned int	nColors
	)

Reads RGB palette file into preallocated buffer.

The input file can't be compressed and must have 768 bytes.

Returns:

Returns 0 on success, error code on failure.

Definition at line 228 of file bulcommn.c.

int rnc_compressed_buf

(

unsigned char *

buff

)

Gives version of the RNC file.

Requies buff to be at least 4 bytes long.

Parameters:

buff

The source buffer.

Returns:

Returns 0 if buff seems not to be RNC compressed, or RNC version (positive number) if buff is compressed.

Definition at line 255 of file bulcommn.c.

Referenced by rnc_compressed_file().

int rnc_compressed_file

(

FILE *

fp

)

Gives version of the RNC file.

Reads 4 starting bytes of given FILE, and compares three of them with RNC signature. Then returns fourth one.

Parameters:

fp

The opened file.

Returns:

Returns 0 if file seems not to be RNC compressed, or RNC version (positive number) if file is compressed.

Definition at line 272 of file bulcommn.c.

unsigned int rnd

(

const unsigned int

range

)

Returns a random number within given range.

Definition at line 243 of file bulcommn.c.

Referenced by create_columns_slb_claimed(), create_columns_slb_hatchery_floor(), create_columns_slb_library_floor(), create_columns_slb_temple_inside(), create_columns_slb_workshop_inside(), fill_column_claimedgnd_surr(), fill_column_dungheart_inside(), fill_column_earth(), fill_column_earth_nearwater(), fill_column_earthground(), fill_column_gem(), fill_column_gold(), fill_column_gold_nearlava(), fill_column_gold_nearwater(), fill_column_guardpost_floor_a(), fill_column_guardpost_floor_b(), fill_column_guardpost_floor_c(), fill_column_hatchery_inside(), fill_column_library_pillar(), fill_column_path(), fill_column_portal_floor(), fill_column_portal_pillar(), fill_column_portal_step(), fill_column_temple_floor(), fill_column_wall_pairshrbrick_a(), fill_column_wall_pairshrbrick_b(), fill_column_wall_pairshrbrick_c(), fill_column_wall_redsmbrick_a(), fill_column_wall_redsmbrick_a_nearlava(), fill_column_wall_redsmbrick_a_nearwater(), fill_column_wall_redsmbrick_b(), fill_column_wall_redsmbrick_c(), fill_column_wall_twinsbrick_a(), fill_column_wall_twinsbrick_b(), fill_column_wall_twinsbrick_c(), fill_column_wall_womanbrick_a(), fill_column_wall_womanbrick_b(), fill_column_wall_womanbrick_c(), generate_map_bitmap(), generate_random_map(), get_random_wall_slab(), modify_frail_columns(), place_column_univ_stair(), place_column_wall_redsmbrick(), place_column_wall_redsmbrick_dkbtm(), and place_room_rndpos().

short write_bmp_fn_24b	(	const char *	fname,
		int	width,
		int	height,
		const char *	data
	)

Writes indexed colour bitmap into file with given name.

Parameters:

	fname	Destination file name.
	width	Bitmap width.
	height	Bitmap height.
	data	Bitmap data buffer.

Returns:

Returns 0 on success, error code on failure.

Definition at line 147 of file bulcommn.c.

short write_bmp_fn_idx	(	const char *	fname,
		int	width,
		int	height,
		const unsigned char *	pal,
		const char *	data,
		int	red,
		int	green,
		int	blue,
		int	mult
	)

Writes indexed colour bitmap into file with given name.

Parameters:

	fname	Destination file name.
	width	Bitmap width.
	height	Bitmap height; may be negative to flip the bitmap.
	pal	RGB Palette buffer.
	data	Bitmap data buffer.
	red	Red color position in patette.
	green	Green color position in patette.
	blue	Blue color position in patette.
	mult	Color value multiplier.

Returns:

Returns 0 on success, error code on failure.

Definition at line 44 of file bulcommn.c.

short write_bmp_fp_24b	(	FILE *	out,
		int	width,
		int	height,
		const char *	data
	)

Writes indexed colour bitmap into opened file.

Parameters:

	out	Destination file (already opened for writing).
	width	Bitmap width.
	height	Bitmap height.
	data	Bitmap data buffer.

Returns:

Returns 0 on success, error code on failure.

Definition at line 171 of file bulcommn.c.

Referenced by write_bitmap_rgb(), and write_bmp_fn_24b().

short write_bmp_fp_idx	(	FILE *	out,
		int	width,
		int	height,
		const unsigned char *	pal,
		const char *	data,
		int	red,
		int	green,
		int	blue,
		int	mult
	)

Writes indexed colour bitmap into opened file.

Parameters:

	out	Destination file (already opened for writing).
	width	Bitmap width.
	height	Bitmap height; may be negative to flip the bitmap.
	pal	RGB Palette buffer.
	data	Bitmap data buffer.
	red	Red color position in patette.
	green	Green color position in patette.
	blue	Blue color position in patette.
	mult	Color value multiplier.

Returns:

Returns 0 on success, error code on failure.

Definition at line 75 of file bulcommn.c.

Referenced by write_bmp_fn_idx().

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Variable Documentation

char const* RNC_SIGNATURE_STR = "RNC\001"

RNC compression magic identifier, as string.

Definition at line 29 of file bulcommn.c.

Referenced by rnc_compressed_buf().