planar_unpack.h File Reference

#include <stdint.h>

Go to the source code of this file.

Macros
#define	WSX_PLANAR_UNPACK_1BPP_TO_2BPP_ZERO(fg)
	Unpack 1BPP tiles to 2BPP tiles, using color zero and a specified foreground color.
#define	WSX_PLANAR_UNPACK_1BPP_TO_4BPP_ZERO(fg)
	Unpack 1BPP tiles to 4BPP tiles, using color zero and a specified foreground color.
#define	WSX_PLANAR_UNPACK_1BPP_TO_2BPP(bg, fg)
	Unpack 1BPP tiles to 2BPP tiles, using a specified background and foreground color.

Functions
void	wsx_planar_unpack (void __far *dest, uint16_t src_length, const void __far *src, uint16_t mode)
	Unpack a lower-bitdepth planar image to a higher bitdepth.

Detailed Description

Copyright (c) 2023 Adrian "asie" Siekierka

This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.

Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.

Planar image unpacking routines.

Definition in file planar_unpack.h.

Macro Definition Documentation

WSX_PLANAR_UNPACK_1BPP_TO_2BPP

#define WSX_PLANAR_UNPACK_1BPP_TO_2BPP	(		bg,
			fg )

Value:

((fg) | ((bg) << 2) | (2 << 8))

Unpack 1BPP tiles to 2BPP tiles, using a specified background and foreground color.

Definition at line 45 of file planar_unpack.h.

WSX_PLANAR_UNPACK_1BPP_TO_2BPP_ZERO

#define WSX_PLANAR_UNPACK_1BPP_TO_2BPP_ZERO

(

fg

)

Value:

(fg)

Unpack 1BPP tiles to 2BPP tiles, using color zero and a specified foreground color.

Definition at line 35 of file planar_unpack.h.

WSX_PLANAR_UNPACK_1BPP_TO_4BPP_ZERO

#define WSX_PLANAR_UNPACK_1BPP_TO_4BPP_ZERO

(

fg

)

Value:

((fg) | (1 << 8))

Unpack 1BPP tiles to 4BPP tiles, using color zero and a specified foreground color.

Definition at line 40 of file planar_unpack.h.

Function Documentation

wsx_planar_unpack()

void wsx_planar_unpack	(	void __far *	dest,
		uint16_t	src_length,
		const void __far *	src,
		uint16_t	mode )

Unpack a lower-bitdepth planar image to a higher bitdepth.

Parameters

dest	Destination memory pointer.
src_length	Source data length.
src	Source memory pointer.
mode	Unpacking mode, see WSX_PLANAR_UNPACK_MODE defines.