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#+private
package terminal
import "base:runtime"
import "core:os"
import "core:sys/windows"
_is_terminal :: proc "contextless" (f: ^os.File) -> bool {
return os.is_tty(f)
}
old_modes: [2]struct{
handle: windows.DWORD,
mode: windows.DWORD,
} = {
{windows.STD_OUTPUT_HANDLE, 0},
{windows.STD_ERROR_HANDLE, 0},
}
@(init)
_init_terminal :: proc "contextless" () {
vtp_enabled: bool
for &v in old_modes {
handle := windows.GetStdHandle(v.handle)
if handle == windows.INVALID_HANDLE || handle == nil {
return
}
if windows.GetConsoleMode(handle, &v.mode) {
windows.SetConsoleMode(handle, v.mode | windows.ENABLE_PROCESSED_OUTPUT | windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING)
new_mode: windows.DWORD
windows.GetConsoleMode(handle, &new_mode)
if new_mode & (windows.ENABLE_PROCESSED_OUTPUT | windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING) != 0 {
vtp_enabled = true
}
}
}
if vtp_enabled {
// This color depth is available on Windows 10 since build 10586.
color_depth = .Four_Bit
} else {
context = runtime.default_context()
// The user may be on a non-default terminal emulator.
color_depth = get_environment_color()
}
}
@(fini)
_fini_terminal :: proc "contextless" () {
for v in old_modes {
handle := windows.GetStdHandle(v.handle)
if handle == windows.INVALID_HANDLE || handle == nil {
return
}
windows.SetConsoleMode(handle, v.mode)
}
}
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