196 lines
5.3 KiB
C
196 lines
5.3 KiB
C
/*
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* Copyright (C) 2013 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include <stdio.h>
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#include <errno.h>
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#include <ipxe/ansiesc.h>
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#include <ipxe/ansicol.h>
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#include <config/colour.h>
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/** @file
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*
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* ANSI colour definitions
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*
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*/
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/**
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* Construct ANSI colour definition
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*
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* @v basic Basic colour
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* @v rgb 24-bit RGB value (or ANSICOL_NO_RGB)
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* @ret ansicol ANSI colour definition
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*/
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#define ANSICOL_DEFINE( basic, rgb ) ( ( (basic) << 28 ) | (rgb) )
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/**
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* Extract basic colour from ANSI colour definition
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*
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* @v ansicol ANSI colour definition
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* @ret basic Basic colour
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*/
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#define ANSICOL_BASIC( ansicol ) ( (ansicol) >> 28 )
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/**
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* Extract 24-bit RGB value from ANSI colour definition
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*
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* @v ansicol ANSI colour definition
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* @ret rgb 24-bit RGB value
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*/
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#define ANSICOL_RGB( ansicol ) ( ( (ansicol) >> 0 ) & 0xffffffUL )
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/**
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* Extract 24-bit RGB value red component from ANSI colour definition
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*
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* @v ansicol ANSI colour definition
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* @ret red Red component
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*/
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#define ANSICOL_RED( ansicol ) ( ( (ansicol) >> 16 ) & 0xff )
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/**
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* Extract 24-bit RGB value green component from ANSI colour definition
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*
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* @v ansicol ANSI colour definition
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* @ret green Green component
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*/
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#define ANSICOL_GREEN( ansicol ) ( ( (ansicol) >> 8 ) & 0xff )
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/**
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* Extract 24-bit RGB value blue component from ANSI colour definition
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*
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* @v ansicol ANSI colour definition
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* @ret blue Blue component
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*/
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#define ANSICOL_BLUE( ansicol ) ( ( (ansicol) >> 0 ) & 0xff )
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/**
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* Construct default ANSI colour definition
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*
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* @v basic Basic colour
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* @ret ansicol ANSI colour definition
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*
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* Colours default to being just a basic colour. If the colour
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* matches the normal UI text background colour, then its basic colour
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* value is set to @c ANSICOL_MAGIC.
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*/
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#define ANSICOL_DEFAULT( basic ) \
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ANSICOL_DEFINE ( ( ( (basic) == COLOR_NORMAL_BG ) ? \
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ANSICOL_MAGIC : (basic) ), \
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ANSICOL_NO_RGB )
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/** ANSI colour definitions */
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static uint32_t ansicols[] = {
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[COLOR_BLACK] = ANSICOL_DEFAULT ( COLOR_BLACK ),
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[COLOR_RED] = ANSICOL_DEFAULT ( COLOR_RED ),
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[COLOR_GREEN] = ANSICOL_DEFAULT ( COLOR_GREEN ),
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[COLOR_YELLOW] = ANSICOL_DEFAULT ( COLOR_YELLOW ),
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[COLOR_BLUE] = ANSICOL_DEFAULT ( COLOR_BLUE ),
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[COLOR_MAGENTA] = ANSICOL_DEFAULT ( COLOR_MAGENTA ),
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[COLOR_CYAN] = ANSICOL_DEFAULT ( COLOR_CYAN ),
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[COLOR_WHITE] = ANSICOL_DEFAULT ( COLOR_WHITE ),
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};
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/** Magic basic colour */
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static uint8_t ansicol_magic = COLOR_NORMAL_BG;
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/**
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* Define ANSI colour
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*
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* @v colour Colour index
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* @v basic Basic colour
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* @v rgb 24-bit RGB value (or ANSICOL_NO_RGB)
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* @ret rc Return status code
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*/
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int ansicol_define ( unsigned int colour, unsigned int basic, uint32_t rgb ) {
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uint32_t ansicol;
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/* Fail if colour index is out of range */
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if ( colour >= ( sizeof ( ansicols ) / sizeof ( ansicols[0] ) ) )
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return -EINVAL;
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/* Update colour definition */
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ansicol = ANSICOL_DEFINE ( basic, rgb );
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ansicols[colour] = ansicol;
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DBGC ( &ansicols[0], "ANSICOL redefined colour %d as basic %d RGB "
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"%#06lx%s\n", colour, ANSICOL_BASIC ( ansicol ),
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ANSICOL_RGB ( ansicol ),
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( ( ansicol & ANSICOL_NO_RGB ) ? " [norgb]" : "" ) );
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return 0;
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}
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/**
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* Set ANSI colour (using colour definitions)
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*
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* @v colour Colour index
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* @v which Foreground/background selector
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*/
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void ansicol_set ( unsigned int colour, unsigned int which ) {
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uint32_t ansicol;
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unsigned int basic;
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/* Use default colour if colour index is out of range */
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if ( colour < ( sizeof ( ansicols ) / sizeof ( ansicols[0] ) ) ) {
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ansicol = ansicols[colour];
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} else {
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ansicol = ANSICOL_DEFINE ( COLOUR_DEFAULT, ANSICOL_NO_RGB );
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}
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/* If basic colour is out of range, use the magic colour */
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basic = ANSICOL_BASIC ( ansicol );
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if ( basic >= 10 )
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basic = ansicol_magic;
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/* Set basic colour first */
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printf ( CSI "%c%dm", which, basic );
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/* Set 24-bit RGB colour, if applicable */
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if ( ! ( ansicol & ANSICOL_NO_RGB ) ) {
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printf ( CSI "%c8;2;%d;%d;%dm", which, ANSICOL_RED ( ansicol ),
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ANSICOL_GREEN ( ansicol ), ANSICOL_BLUE ( ansicol ) );
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}
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}
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/**
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* Reset magic colour
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*
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*/
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void ansicol_reset_magic ( void ) {
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/* Set to the compile-time default background colour */
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ansicol_magic = COLOR_NORMAL_BG;
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}
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/**
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* Set magic colour to transparent
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*
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*/
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void ansicol_set_magic_transparent ( void ) {
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/* Set to the console default colour (which will give a
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* transparent background on the framebuffer console).
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*/
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ansicol_magic = COLOR_DEFAULT;
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}
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