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terminal_state : struct {
// size : ivec2;
width: s32;
height: s32;
// cursor := ivec2.{-1, -1}; // {-1, -1} if cursor hidden
x: s32 = -1;
y: s32 = -1;
last_mode : Graphics_Mode;
}
#if OS == .LINUX {
#import "POSIX";
__term : My_Termios;
My_Termios :: struct {
c_iflag : u32;
c_oflag : u32;
c_cflag : u32;
c_lflag : u32;
unknown_pad : u8;
c_cc : [32]u8;
c_ispeed : u32;
c_ospeed : u32;
}
libc :: #system_library "libc";
tcsetattr :: (fd : s32, optional_actions : s32, termios_p : *My_Termios) -> s32 #foreign libc;
tcgetattr :: (fd : s32, termios_p : *My_Termios) -> s32 #foreign libc;
}
else {
assert(false, "unsupported OS\n");
}
Graphics_Mode :: struct {
foreground : Color;
background : Color;
attr_flags : enum_flags u8 {
F_BOLD :: 0x1;
F_DIM :: 0x2;
F_ITALIC :: 0x4;
F_UNDERLINE :: 0x8;
F_BLINKING :: 0x10;
F_INVERSE :: 0x20;
F_STRIKETHROUGH :: 0x40;
}
// attrs : [MAX_ATTRS]bool;
// 0 - bold (on/off/keep)
// 1 - dim/faint
// 2 - italic
// 3 - underline
// 4 - blinking
// 5 - inverse
// 6 - strikethrough
fcol256 : u8;
bcol256 : u8;
}
Color :: enum u8 {
RESET :: 0;
DEFAULT :: 39;
COLOR256 :: 38;
BLACK :: 30;
RED :: 31;
GREEN :: 32;
YELLOW :: 33;
BLUE :: 34;
MAGENTA :: 35;
CYAN :: 36;
WHITE :: 37;
BRIGHT_BLACK :: 90;
BRIGHT_RED :: 91;
BRIGHT_GREEN :: 92;
BRIGHT_YELLOW :: 93;
BRIGHT_BLUE :: 94;
BRIGHT_MAGENTA :: 95;
BRIGHT_CYAN :: 96;
BRIGHT_WHITE :: 97;
}
__old_logger : type_of(context.logger);
initialize :: () {
#if OS == .LINUX {
tcgetattr(STDIN_FILENO, *__term);
} else {
assert(false, "procedure call on unsupported OS\n");
}
}
terminate :: () {
#if OS == .LINUX {
tcsetattr(STDIN_FILENO, 0, *__term); // return echo
tio_write("\e[?47l"); // restore screen
tio_write("\e8"); // restore cursor
tio_write("\e[?25h"); // show cursor
tio_write("\e[?30h"); // show scrollbar
terminal_state = .{};
context.logger = __old_logger;
} else {
assert(false, "procedure call on unsupported OS\n");
}
}
tio_write :: (str : string) {
#if OS == .LINUX {
write(STDIN_FILENO, str.data, xx str.count);
} else {
assert(false, "procedure call on unsupported OS\n");
}
}
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