Text color, Backdrop color

Text color, Background color, Backdrop color. More...

Collaboration diagram for Text color, Backdrop color:

Macros
#define	fg_color(fg)
	MSX Set foreground color.
#define	bg_color(bg)
	MSX Set background color.
#define	border_color(border)
	MSX Set border color of the screen.
#define	text_color(fg, bg)
	MSX Set foreground and background color.
#define	color(fg, bg, border)
	MSX Set foreground, background, and border color.

Detailed Description

Text color, Background color, Backdrop color.

SCREEN mode	Text foregrond	Text background	Backdrop
SCREEN 0 (TEXT 1)	16 color palette	16 color palette	N/A
SCREEN 0 (TEXT 2)	16 color palette	16 color palette	N/A
SCREEN 1 (GRAPHIC 1)	16 color palette	16 color palette	16 color palette
SCREEN 2 (GRAPHIC 2)	16 color palette	16 color palette	16 color palette
SCREEN 4 (GRAPHIC 3)	16 color palette	16 color palette	16 color palette
SCREEN 5 (GRAPHIC 4)	16 color palette	16 color palette	16 color palette
SCREEN 6 (GRAPHIC 5)	4 color palette	4 color palette	4 color palette
SCREEN 7 (GRAPHIC 6)	16 color palette	16 color palette	16 color palette
SCREEN 8 (GRAPHIC 7)	RGB332	RGB332	RGB332
SCREEN 10 (GRAPHIC 7 YJK/RGB)	16 color palette	16 color palette	16 color palette
SCREEN 12 (GRAPHIC 7 YJK)	A portion of YJK	A portion of YJK	16 color palette

• 16 color palette (0..15)
  • MSX Pre-defined 16 colors.
  • MSX2 16 colors out of 512 colors (RGB333).
• 4 color palette (0..3)
  • MSX2 4 colors out of 512 colors (RGB333).
• RGB332 (0..255)
  • MSX2 256 colors (RGB332).
• A portion of YJK (0..255)
  • MSX2+ 19,268 colors (YJK)
  • A single YJK color value spans 4 pixels as follows:
    • 5-bits per pixel of Y component (0..31)
    • 6-bits per 4-pixels of J component (-32..+31)
    • 6-bits per 4-pixels of K component (-32..+31)

Note

In YJK mode (SCREEN 12), text colors 0-255 are treated as in SCREEN 8.

However, a single YJK color value (especially the J and K components) spans 4 pixels. This can result in unexpected colors; in YJK mode, pixel-by-pixel coloring is difficult to achieve.

In mixed YJK/RGB mode (SCREEN 10), unlike YJK mode (SCREEN 12), it is possible to use YJK (12,499 colors) or a color palette (16 of 512 colors) per pixel. Therefore, in mixed YJK/RGB mode, text are drawn with a color palette of 16 colors.

Macro Definition Documentation

fg_color

#define fg_color

(

fg

)

Value:

  TTY_set_fg_color(fg)

MSX Set foreground color.

Parameters

fg	foreground color of text.

Definition at line 126 of file text.h.

bg_color

#define bg_color

(

bg

)

Value:

  TTY_set_bg_color(bg)

MSX Set background color.

Parameters

bg	background color of text.

Definition at line 133 of file text.h.

border_color

#define border_color

(

border

)

Value:

  TTY_set_border_color(border)

MSX Set border color of the screen.

Parameters

border

border color of the screen.

Definition at line 140 of file text.h.

text_color

#define text_color	(		fg,
			bg )

Value:

  TTY_set_text_color(fg, bg)

MSX Set foreground and background color.

Parameters

fg	foreground color of text.
bg	background color of text.

Definition at line 148 of file text.h.

color

#define color	(		fg,
			bg,
			border )

Value:

  TTY_set_color(fg, bg, border)

MSX Set foreground, background, and border color.

Parameters

fg	foreground color of text.
bg	background color of text.
border	border color of the screen.

Definition at line 157 of file text.h.