bsc/vendor/github.com/nsf/termbox-go/termbox_windows.go
Péter Szilágyi 289b30715d Godeps, vendor: convert dependency management to trash (#3198)
This commit converts the dependency management from Godeps to the vendor
folder, also switching the tool from godep to trash. Since the upstream tool
lacks a few features proposed via a few PRs, until those PRs are merged in
(if), use github.com/karalabe/trash.

You can update dependencies via trash --update.

All dependencies have been updated to their latest version.

Parts of the build system are reworked to drop old notions of Godeps and
invocation of the go vet command so that it doesn't run against the vendor
folder, as that will just blow up during vetting.

The conversion drops OpenCL (and hence GPU mining support) from ethash and our
codebase. The short reasoning is that there's noone to maintain and having
opencl libs in our deps messes up builds as go install ./... tries to build
them, failing with unsatisfied link errors for the C OpenCL deps.

golang.org/x/net/context is not vendored in. We expect it to be fetched by the
user (i.e. using go get). To keep ci.go builds reproducible the package is
"vendored" in build/_vendor.
2016-10-28 19:05:01 +02:00

857 lines
20 KiB
Go

package termbox
import "syscall"
import "unsafe"
import "unicode/utf16"
import "github.com/mattn/go-runewidth"
type (
wchar uint16
short int16
dword uint32
word uint16
char_info struct {
char wchar
attr word
}
coord struct {
x short
y short
}
small_rect struct {
left short
top short
right short
bottom short
}
console_screen_buffer_info struct {
size coord
cursor_position coord
attributes word
window small_rect
maximum_window_size coord
}
console_cursor_info struct {
size dword
visible int32
}
input_record struct {
event_type word
_ [2]byte
event [16]byte
}
key_event_record struct {
key_down int32
repeat_count word
virtual_key_code word
virtual_scan_code word
unicode_char wchar
control_key_state dword
}
window_buffer_size_record struct {
size coord
}
mouse_event_record struct {
mouse_pos coord
button_state dword
control_key_state dword
event_flags dword
}
)
const (
mouse_lmb = 0x1
mouse_rmb = 0x2
mouse_mmb = 0x4 | 0x8 | 0x10
)
func (this coord) uintptr() uintptr {
return uintptr(*(*int32)(unsafe.Pointer(&this)))
}
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
var is_cjk = runewidth.IsEastAsian()
var (
proc_set_console_active_screen_buffer = kernel32.NewProc("SetConsoleActiveScreenBuffer")
proc_set_console_screen_buffer_size = kernel32.NewProc("SetConsoleScreenBufferSize")
proc_create_console_screen_buffer = kernel32.NewProc("CreateConsoleScreenBuffer")
proc_get_console_screen_buffer_info = kernel32.NewProc("GetConsoleScreenBufferInfo")
proc_write_console_output = kernel32.NewProc("WriteConsoleOutputW")
proc_write_console_output_character = kernel32.NewProc("WriteConsoleOutputCharacterW")
proc_write_console_output_attribute = kernel32.NewProc("WriteConsoleOutputAttribute")
proc_set_console_cursor_info = kernel32.NewProc("SetConsoleCursorInfo")
proc_set_console_cursor_position = kernel32.NewProc("SetConsoleCursorPosition")
proc_get_console_cursor_info = kernel32.NewProc("GetConsoleCursorInfo")
proc_read_console_input = kernel32.NewProc("ReadConsoleInputW")
proc_get_console_mode = kernel32.NewProc("GetConsoleMode")
proc_set_console_mode = kernel32.NewProc("SetConsoleMode")
proc_fill_console_output_character = kernel32.NewProc("FillConsoleOutputCharacterW")
proc_fill_console_output_attribute = kernel32.NewProc("FillConsoleOutputAttribute")
proc_create_event = kernel32.NewProc("CreateEventW")
proc_wait_for_multiple_objects = kernel32.NewProc("WaitForMultipleObjects")
proc_set_event = kernel32.NewProc("SetEvent")
)
func set_console_active_screen_buffer(h syscall.Handle) (err error) {
r0, _, e1 := syscall.Syscall(proc_set_console_active_screen_buffer.Addr(),
1, uintptr(h), 0, 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func set_console_screen_buffer_size(h syscall.Handle, size coord) (err error) {
r0, _, e1 := syscall.Syscall(proc_set_console_screen_buffer_size.Addr(),
2, uintptr(h), size.uintptr(), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func create_console_screen_buffer() (h syscall.Handle, err error) {
r0, _, e1 := syscall.Syscall6(proc_create_console_screen_buffer.Addr(),
5, uintptr(generic_read|generic_write), 0, 0, console_textmode_buffer, 0, 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return syscall.Handle(r0), err
}
func get_console_screen_buffer_info(h syscall.Handle, info *console_screen_buffer_info) (err error) {
r0, _, e1 := syscall.Syscall(proc_get_console_screen_buffer_info.Addr(),
2, uintptr(h), uintptr(unsafe.Pointer(info)), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func write_console_output(h syscall.Handle, chars []char_info, dst small_rect) (err error) {
tmp_coord = coord{dst.right - dst.left + 1, dst.bottom - dst.top + 1}
tmp_rect = dst
r0, _, e1 := syscall.Syscall6(proc_write_console_output.Addr(),
5, uintptr(h), uintptr(unsafe.Pointer(&chars[0])), tmp_coord.uintptr(),
tmp_coord0.uintptr(), uintptr(unsafe.Pointer(&tmp_rect)), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func write_console_output_character(h syscall.Handle, chars []wchar, pos coord) (err error) {
r0, _, e1 := syscall.Syscall6(proc_write_console_output_character.Addr(),
5, uintptr(h), uintptr(unsafe.Pointer(&chars[0])), uintptr(len(chars)),
pos.uintptr(), uintptr(unsafe.Pointer(&tmp_arg)), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func write_console_output_attribute(h syscall.Handle, attrs []word, pos coord) (err error) {
r0, _, e1 := syscall.Syscall6(proc_write_console_output_attribute.Addr(),
5, uintptr(h), uintptr(unsafe.Pointer(&attrs[0])), uintptr(len(attrs)),
pos.uintptr(), uintptr(unsafe.Pointer(&tmp_arg)), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func set_console_cursor_info(h syscall.Handle, info *console_cursor_info) (err error) {
r0, _, e1 := syscall.Syscall(proc_set_console_cursor_info.Addr(),
2, uintptr(h), uintptr(unsafe.Pointer(info)), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func get_console_cursor_info(h syscall.Handle, info *console_cursor_info) (err error) {
r0, _, e1 := syscall.Syscall(proc_get_console_cursor_info.Addr(),
2, uintptr(h), uintptr(unsafe.Pointer(info)), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func set_console_cursor_position(h syscall.Handle, pos coord) (err error) {
r0, _, e1 := syscall.Syscall(proc_set_console_cursor_position.Addr(),
2, uintptr(h), pos.uintptr(), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func read_console_input(h syscall.Handle, record *input_record) (err error) {
r0, _, e1 := syscall.Syscall6(proc_read_console_input.Addr(),
4, uintptr(h), uintptr(unsafe.Pointer(record)), 1, uintptr(unsafe.Pointer(&tmp_arg)), 0, 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func get_console_mode(h syscall.Handle, mode *dword) (err error) {
r0, _, e1 := syscall.Syscall(proc_get_console_mode.Addr(),
2, uintptr(h), uintptr(unsafe.Pointer(mode)), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func set_console_mode(h syscall.Handle, mode dword) (err error) {
r0, _, e1 := syscall.Syscall(proc_set_console_mode.Addr(),
2, uintptr(h), uintptr(mode), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func fill_console_output_character(h syscall.Handle, char wchar, n int) (err error) {
r0, _, e1 := syscall.Syscall6(proc_fill_console_output_character.Addr(),
5, uintptr(h), uintptr(char), uintptr(n), tmp_coord.uintptr(),
uintptr(unsafe.Pointer(&tmp_arg)), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func fill_console_output_attribute(h syscall.Handle, attr word, n int) (err error) {
r0, _, e1 := syscall.Syscall6(proc_fill_console_output_attribute.Addr(),
5, uintptr(h), uintptr(attr), uintptr(n), tmp_coord.uintptr(),
uintptr(unsafe.Pointer(&tmp_arg)), 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func create_event() (out syscall.Handle, err error) {
r0, _, e1 := syscall.Syscall6(proc_create_event.Addr(),
4, 0, 0, 0, 0, 0, 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return syscall.Handle(r0), err
}
func wait_for_multiple_objects(objects []syscall.Handle) (err error) {
r0, _, e1 := syscall.Syscall6(proc_wait_for_multiple_objects.Addr(),
4, uintptr(len(objects)), uintptr(unsafe.Pointer(&objects[0])),
0, 0xFFFFFFFF, 0, 0)
if uint32(r0) == 0xFFFFFFFF {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func set_event(ev syscall.Handle) (err error) {
r0, _, e1 := syscall.Syscall(proc_set_event.Addr(),
1, uintptr(ev), 0, 0)
if int(r0) == 0 {
if e1 != 0 {
err = error(e1)
} else {
err = syscall.EINVAL
}
}
return
}
type diff_msg struct {
pos short
lines short
chars []char_info
}
type input_event struct {
event Event
err error
}
var (
orig_cursor_info console_cursor_info
orig_size coord
orig_mode dword
orig_screen syscall.Handle
back_buffer cellbuf
front_buffer cellbuf
term_size coord
input_mode = InputEsc
cursor_x = cursor_hidden
cursor_y = cursor_hidden
foreground = ColorDefault
background = ColorDefault
in syscall.Handle
out syscall.Handle
interrupt syscall.Handle
charbuf []char_info
diffbuf []diff_msg
beg_x = -1
beg_y = -1
beg_i = -1
input_comm = make(chan Event)
interrupt_comm = make(chan struct{})
cancel_comm = make(chan bool, 1)
cancel_done_comm = make(chan bool)
alt_mode_esc = false
// these ones just to prevent heap allocs at all costs
tmp_info console_screen_buffer_info
tmp_arg dword
tmp_coord0 = coord{0, 0}
tmp_coord = coord{0, 0}
tmp_rect = small_rect{0, 0, 0, 0}
)
func get_cursor_position(out syscall.Handle) coord {
err := get_console_screen_buffer_info(out, &tmp_info)
if err != nil {
panic(err)
}
return tmp_info.cursor_position
}
func get_term_size(out syscall.Handle) coord {
err := get_console_screen_buffer_info(out, &tmp_info)
if err != nil {
panic(err)
}
return tmp_info.size
}
func get_win_size(out syscall.Handle) coord {
err := get_console_screen_buffer_info(out, &tmp_info)
if err != nil {
panic(err)
}
return coord{
x: tmp_info.window.right - tmp_info.window.left + 1,
y: tmp_info.window.bottom - tmp_info.window.top + 1,
}
}
func update_size_maybe() {
size := get_term_size(out)
if size.x != term_size.x || size.y != term_size.y {
term_size = size
back_buffer.resize(int(size.x), int(size.y))
front_buffer.resize(int(size.x), int(size.y))
front_buffer.clear()
clear()
area := int(size.x) * int(size.y)
if cap(charbuf) < area {
charbuf = make([]char_info, 0, area)
}
}
}
var color_table_bg = []word{
0, // default (black)
0, // black
background_red,
background_green,
background_red | background_green, // yellow
background_blue,
background_red | background_blue, // magenta
background_green | background_blue, // cyan
background_red | background_blue | background_green, // white
}
var color_table_fg = []word{
foreground_red | foreground_blue | foreground_green, // default (white)
0,
foreground_red,
foreground_green,
foreground_red | foreground_green, // yellow
foreground_blue,
foreground_red | foreground_blue, // magenta
foreground_green | foreground_blue, // cyan
foreground_red | foreground_blue | foreground_green, // white
}
const (
replacement_char = '\uFFFD'
max_rune = '\U0010FFFF'
surr1 = 0xd800
surr2 = 0xdc00
surr3 = 0xe000
surr_self = 0x10000
)
func append_diff_line(y int) int {
n := 0
for x := 0; x < front_buffer.width; {
cell_offset := y*front_buffer.width + x
back := &back_buffer.cells[cell_offset]
front := &front_buffer.cells[cell_offset]
attr, char := cell_to_char_info(*back)
charbuf = append(charbuf, char_info{attr: attr, char: char[0]})
*front = *back
n++
w := runewidth.RuneWidth(back.Ch)
if w == 0 || w == 2 && runewidth.IsAmbiguousWidth(back.Ch) {
w = 1
}
x += w
// If not CJK, fill trailing space with whitespace
if !is_cjk && w == 2 {
charbuf = append(charbuf, char_info{attr: attr, char: ' '})
}
}
return n
}
// compares 'back_buffer' with 'front_buffer' and prepares all changes in the form of
// 'diff_msg's in the 'diff_buf'
func prepare_diff_messages() {
// clear buffers
diffbuf = diffbuf[:0]
charbuf = charbuf[:0]
var diff diff_msg
gbeg := 0
for y := 0; y < front_buffer.height; y++ {
same := true
line_offset := y * front_buffer.width
for x := 0; x < front_buffer.width; x++ {
cell_offset := line_offset + x
back := &back_buffer.cells[cell_offset]
front := &front_buffer.cells[cell_offset]
if *back != *front {
same = false
break
}
}
if same && diff.lines > 0 {
diffbuf = append(diffbuf, diff)
diff = diff_msg{}
}
if !same {
beg := len(charbuf)
end := beg + append_diff_line(y)
if diff.lines == 0 {
diff.pos = short(y)
gbeg = beg
}
diff.lines++
diff.chars = charbuf[gbeg:end]
}
}
if diff.lines > 0 {
diffbuf = append(diffbuf, diff)
diff = diff_msg{}
}
}
func get_ct(table []word, idx int) word {
idx = idx & 0x0F
if idx >= len(table) {
idx = len(table) - 1
}
return table[idx]
}
func cell_to_char_info(c Cell) (attr word, wc [2]wchar) {
attr = get_ct(color_table_fg, int(c.Fg)) | get_ct(color_table_bg, int(c.Bg))
if c.Fg&AttrReverse|c.Bg&AttrReverse != 0 {
attr = (attr&0xF0)>>4 | (attr&0x0F)<<4
}
if c.Fg&AttrBold != 0 {
attr |= foreground_intensity
}
if c.Bg&AttrBold != 0 {
attr |= background_intensity
}
r0, r1 := utf16.EncodeRune(c.Ch)
if r0 == 0xFFFD {
wc[0] = wchar(c.Ch)
wc[1] = ' '
} else {
wc[0] = wchar(r0)
wc[1] = wchar(r1)
}
return
}
func move_cursor(x, y int) {
err := set_console_cursor_position(out, coord{short(x), short(y)})
if err != nil {
panic(err)
}
}
func show_cursor(visible bool) {
var v int32
if visible {
v = 1
}
var info console_cursor_info
info.size = 100
info.visible = v
err := set_console_cursor_info(out, &info)
if err != nil {
panic(err)
}
}
func clear() {
var err error
attr, char := cell_to_char_info(Cell{
' ',
foreground,
background,
})
area := int(term_size.x) * int(term_size.y)
err = fill_console_output_attribute(out, attr, area)
if err != nil {
panic(err)
}
err = fill_console_output_character(out, char[0], area)
if err != nil {
panic(err)
}
if !is_cursor_hidden(cursor_x, cursor_y) {
move_cursor(cursor_x, cursor_y)
}
}
func key_event_record_to_event(r *key_event_record) (Event, bool) {
if r.key_down == 0 {
return Event{}, false
}
e := Event{Type: EventKey}
if input_mode&InputAlt != 0 {
if alt_mode_esc {
e.Mod = ModAlt
alt_mode_esc = false
}
if r.control_key_state&(left_alt_pressed|right_alt_pressed) != 0 {
e.Mod = ModAlt
}
}
ctrlpressed := r.control_key_state&(left_ctrl_pressed|right_ctrl_pressed) != 0
if r.virtual_key_code >= vk_f1 && r.virtual_key_code <= vk_f12 {
switch r.virtual_key_code {
case vk_f1:
e.Key = KeyF1
case vk_f2:
e.Key = KeyF2
case vk_f3:
e.Key = KeyF3
case vk_f4:
e.Key = KeyF4
case vk_f5:
e.Key = KeyF5
case vk_f6:
e.Key = KeyF6
case vk_f7:
e.Key = KeyF7
case vk_f8:
e.Key = KeyF8
case vk_f9:
e.Key = KeyF9
case vk_f10:
e.Key = KeyF10
case vk_f11:
e.Key = KeyF11
case vk_f12:
e.Key = KeyF12
default:
panic("unreachable")
}
return e, true
}
if r.virtual_key_code <= vk_delete {
switch r.virtual_key_code {
case vk_insert:
e.Key = KeyInsert
case vk_delete:
e.Key = KeyDelete
case vk_home:
e.Key = KeyHome
case vk_end:
e.Key = KeyEnd
case vk_pgup:
e.Key = KeyPgup
case vk_pgdn:
e.Key = KeyPgdn
case vk_arrow_up:
e.Key = KeyArrowUp
case vk_arrow_down:
e.Key = KeyArrowDown
case vk_arrow_left:
e.Key = KeyArrowLeft
case vk_arrow_right:
e.Key = KeyArrowRight
case vk_backspace:
if ctrlpressed {
e.Key = KeyBackspace2
} else {
e.Key = KeyBackspace
}
case vk_tab:
e.Key = KeyTab
case vk_enter:
e.Key = KeyEnter
case vk_esc:
switch {
case input_mode&InputEsc != 0:
e.Key = KeyEsc
case input_mode&InputAlt != 0:
alt_mode_esc = true
return Event{}, false
}
case vk_space:
if ctrlpressed {
// manual return here, because KeyCtrlSpace is zero
e.Key = KeyCtrlSpace
return e, true
} else {
e.Key = KeySpace
}
}
if e.Key != 0 {
return e, true
}
}
if ctrlpressed {
if Key(r.unicode_char) >= KeyCtrlA && Key(r.unicode_char) <= KeyCtrlRsqBracket {
e.Key = Key(r.unicode_char)
if input_mode&InputAlt != 0 && e.Key == KeyEsc {
alt_mode_esc = true
return Event{}, false
}
return e, true
}
switch r.virtual_key_code {
case 192, 50:
// manual return here, because KeyCtrl2 is zero
e.Key = KeyCtrl2
return e, true
case 51:
if input_mode&InputAlt != 0 {
alt_mode_esc = true
return Event{}, false
}
e.Key = KeyCtrl3
case 52:
e.Key = KeyCtrl4
case 53:
e.Key = KeyCtrl5
case 54:
e.Key = KeyCtrl6
case 189, 191, 55:
e.Key = KeyCtrl7
case 8, 56:
e.Key = KeyCtrl8
}
if e.Key != 0 {
return e, true
}
}
if r.unicode_char != 0 {
e.Ch = rune(r.unicode_char)
return e, true
}
return Event{}, false
}
func input_event_producer() {
var r input_record
var err error
var last_button Key
var last_button_pressed Key
var last_state = dword(0)
var last_x, last_y = -1, -1
handles := []syscall.Handle{in, interrupt}
for {
err = wait_for_multiple_objects(handles)
if err != nil {
input_comm <- Event{Type: EventError, Err: err}
}
select {
case <-cancel_comm:
cancel_done_comm <- true
return
default:
}
err = read_console_input(in, &r)
if err != nil {
input_comm <- Event{Type: EventError, Err: err}
}
switch r.event_type {
case key_event:
kr := (*key_event_record)(unsafe.Pointer(&r.event))
ev, ok := key_event_record_to_event(kr)
if ok {
for i := 0; i < int(kr.repeat_count); i++ {
input_comm <- ev
}
}
case window_buffer_size_event:
sr := *(*window_buffer_size_record)(unsafe.Pointer(&r.event))
input_comm <- Event{
Type: EventResize,
Width: int(sr.size.x),
Height: int(sr.size.y),
}
case mouse_event:
mr := *(*mouse_event_record)(unsafe.Pointer(&r.event))
ev := Event{Type: EventMouse}
switch mr.event_flags {
case 0, 2:
// single or double click
cur_state := mr.button_state
switch {
case last_state&mouse_lmb == 0 && cur_state&mouse_lmb != 0:
last_button = MouseLeft
last_button_pressed = last_button
case last_state&mouse_rmb == 0 && cur_state&mouse_rmb != 0:
last_button = MouseRight
last_button_pressed = last_button
case last_state&mouse_mmb == 0 && cur_state&mouse_mmb != 0:
last_button = MouseMiddle
last_button_pressed = last_button
case last_state&mouse_lmb != 0 && cur_state&mouse_lmb == 0:
last_button = MouseRelease
case last_state&mouse_rmb != 0 && cur_state&mouse_rmb == 0:
last_button = MouseRelease
case last_state&mouse_mmb != 0 && cur_state&mouse_mmb == 0:
last_button = MouseRelease
default:
last_state = cur_state
continue
}
last_state = cur_state
ev.Key = last_button
last_x, last_y = int(mr.mouse_pos.x), int(mr.mouse_pos.y)
ev.MouseX = last_x
ev.MouseY = last_y
case 1:
// mouse motion
x, y := int(mr.mouse_pos.x), int(mr.mouse_pos.y)
if last_state != 0 && (last_x != x || last_y != y) {
ev.Key = last_button_pressed
ev.Mod = ModMotion
ev.MouseX = x
ev.MouseY = y
last_x, last_y = x, y
} else {
ev.Type = EventNone
}
case 4:
// mouse wheel
n := int16(mr.button_state >> 16)
if n > 0 {
ev.Key = MouseWheelUp
} else {
ev.Key = MouseWheelDown
}
last_x, last_y = int(mr.mouse_pos.x), int(mr.mouse_pos.y)
ev.MouseX = last_x
ev.MouseY = last_y
default:
ev.Type = EventNone
}
if ev.Type != EventNone {
input_comm <- ev
}
}
}
}