dxx-rebirth/common/include/rle.h
2014-06-30 23:56:51 +00:00

80 lines
2.4 KiB
C++

/*
* Portions of this file are copyright Rebirth contributors and licensed as
* described in COPYING.txt.
* Portions of this file are copyright Parallax Software and licensed
* according to the Parallax license below.
* See COPYING.txt for license details.
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
*/
/*
*
* Protypes for rle functions.
*
*/
#ifndef _RLE_H
#define _RLE_H
#include "pstypes.h"
#include "gr.h"
#ifdef __cplusplus
#include <cstdint>
#include "dxxsconf.h"
#include "compiler-begin.h"
struct rle_position_t
{
const uint8_t *src;
uint8_t *dst;
rle_position_t(const uint8_t *src, uint8_t *dst) :
src(src), dst(dst)
{
}
};
static inline uint8_t *end(grs_bitmap *b)
{
return b->bm_data + (b->bm_h * b->bm_w);
}
template <typename T1, typename T2>
static inline rle_position_t rle_begin(const T1 &src, T2 &dst)
{
return {begin(src), begin(dst)};
}
template <typename T1, typename T2>
static inline rle_position_t rle_end(const T1 &src, T2 &dst)
{
return {end(src), end(dst)};
}
rle_position_t gr_rle_decode(rle_position_t b, const rle_position_t e);
int gr_rle_encode( int org_size, ubyte *src, ubyte *dest );
int gr_rle_getsize( int org_size, ubyte *src );
ubyte * gr_rle_find_xth_pixel( ubyte *src, int x,int * count, ubyte color );
int gr_bitmap_rle_compress( grs_bitmap * bmp );
void gr_rle_expand_scanline_masked( ubyte *dest, ubyte *src, int x1, int x2 );
void gr_rle_expand_scanline( ubyte *dest, ubyte *src, int x1, int x2 );
grs_bitmap * rle_expand_texture( grs_bitmap * bmp );
void rle_cache_close();
void rle_cache_flush();
void rle_swap_0_255(grs_bitmap *bmp);
void rle_remap(grs_bitmap *bmp, ubyte *colormap);
void gr_rle_expand_scanline_generic( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
#endif
#endif