mpv/osdep/terminal-win.c

241 lines
6.7 KiB
C

/* Windows TermIO
*
* copyright (C) 2003 Sascha Sommer
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
// See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/UserInput/VirtualKeyCodes.asp
// for additional virtual keycodes
#include "config.h"
#include <fcntl.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <windows.h>
#include <io.h>
#include "input/keycodes.h"
#include "input/input.h"
#include "terminal.h"
#include "osdep/w32_keyboard.h"
int screen_width = 79;
int screen_height = 24;
char *terminal_erase_to_end_of_line = "";
char *terminal_cursor_up = "";
#define hSTDOUT GetStdHandle(STD_OUTPUT_HANDLE)
#define hSTDERR GetStdHandle(STD_ERROR_HANDLE)
static short stdoutAttrs = 0;
static const unsigned char ansi2win32[8] = {
0,
FOREGROUND_RED,
FOREGROUND_GREEN,
FOREGROUND_GREEN | FOREGROUND_RED,
FOREGROUND_BLUE,
FOREGROUND_BLUE | FOREGROUND_RED,
FOREGROUND_BLUE | FOREGROUND_GREEN,
FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED,
};
static int mp_input_slave_cmd_func(void *ctx, int fd, char *dest, int size)
{
DWORD retval;
HANDLE in = GetStdHandle(STD_INPUT_HANDLE);
if (PeekNamedPipe(in, NULL, size, &retval, NULL, NULL)) {
if (size > retval)
size = retval;
} else {
if (WaitForSingleObject(in, 0))
size = 0;
}
if (!size)
return MP_INPUT_NOTHING;
ReadFile(in, dest, size, &retval, NULL);
if (retval)
return retval;
return MP_INPUT_NOTHING;
}
void terminal_setup_stdin_cmd_input(struct input_ctx *ictx)
{
mp_input_add_fd(ictx, 0, 0, mp_input_slave_cmd_func, NULL, NULL, NULL);
}
void get_screen_size(void)
{
CONSOLE_SCREEN_BUFFER_INFO cinfo;
if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cinfo)) {
screen_width = cinfo.dwMaximumWindowSize.X;
screen_height = cinfo.dwMaximumWindowSize.Y;
}
}
static HANDLE in;
static int getch2_status = 0;
static int getch2_internal(void)
{
INPUT_RECORD eventbuffer[128];
DWORD retval;
int i = 0;
if (!getch2_status) {
// supports e.g. MinGW xterm, unfortunately keys are only received after
// enter was pressed.
uint8_t c;
if (!PeekNamedPipe(in, NULL, 1, &retval, NULL, NULL) || !retval)
return -1;
ReadFile(in, &c, 1, &retval, NULL);
return retval == 1 ? c : -1;
}
/*check if there are input events*/
if (!GetNumberOfConsoleInputEvents(in, &retval)) {
printf("getch2: can't get number of input events: %i\n",
(int)GetLastError());
return -1;
}
if (retval <= 0)
return -1;
/*read all events*/
if (!ReadConsoleInput(in, eventbuffer, 128, &retval)) {
printf("getch: can't read input events\n");
return -1;
}
/*filter out keyevents*/
for (i = 0; i < retval; i++) {
switch (eventbuffer[i].EventType) {
case KEY_EVENT: {
KEY_EVENT_RECORD *record = &eventbuffer[i].Event.KeyEvent;
/*only a pressed key is interresting for us*/
if (record->bKeyDown) {
UINT vkey = record->wVirtualKeyCode;
bool ext = record->dwControlKeyState & ENHANCED_KEY;
int mpkey = mp_w32_vkey_to_mpkey(vkey, ext);
if (mpkey)
return mpkey;
/*only characters should be remaining*/
//printf("getch2: YOU PRESSED \"%c\" \n",eventbuffer[i].Event.KeyEvent.uChar.AsciiChar);
return eventbuffer[i].Event.KeyEvent.uChar.UnicodeChar;
}
break;
}
case MOUSE_EVENT:
case WINDOW_BUFFER_SIZE_EVENT:
case FOCUS_EVENT:
case MENU_EVENT:
default:
//printf("getch2: unsupported event type");
break;
}
}
return -1;
}
static bool getch2(struct input_ctx *ctx)
{
int r = getch2_internal();
if (r >= 0)
mp_input_put_key(ctx, r);
return true;
}
static int read_keys(void *ctx, int fd)
{
if (getch2(ctx))
return MP_INPUT_NOTHING;
return MP_INPUT_DEAD;
}
void terminal_setup_getch(struct input_ctx *ictx)
{
mp_input_add_fd(ictx, 0, 1, NULL, read_keys, NULL, ictx);
}
void getch2_poll(void)
{
}
void getch2_enable(void)
{
DWORD retval;
in = GetStdHandle(STD_INPUT_HANDLE);
if (!GetNumberOfConsoleInputEvents(in, &retval)) {
printf("getch2: %i can't get number of input events "
"[disabling console input]\n", (int)GetLastError());
getch2_status = 0;
} else
getch2_status = 1;
}
void getch2_disable(void)
{
if (!getch2_status)
return; // already disabled / never enabled
getch2_status = 0;
}
bool terminal_in_background(void)
{
return false;
}
void terminal_set_foreground_color(FILE *stream, int c)
{
HANDLE *wstream = stream == stderr ? hSTDERR : hSTDOUT;
if (c < 0 || c >= 8) { // reset or invalid
SetConsoleTextAttribute(wstream, stdoutAttrs);
} else {
SetConsoleTextAttribute(wstream, ansi2win32[c] | FOREGROUND_INTENSITY);
}
}
int terminal_init(void)
{
if (AttachConsole(ATTACH_PARENT_PROCESS)) {
// We have been started by something with a console window.
// Redirect output streams to that console's low-level handles,
// so we can actually use WriteConsole later on.
int hConHandle;
hConHandle = _open_osfhandle((intptr_t)hSTDOUT, _O_TEXT);
*stdout = *_fdopen(hConHandle, "w");
setvbuf(stdout, NULL, _IONBF, 0);
hConHandle = _open_osfhandle((intptr_t)hSTDERR, _O_TEXT);
*stderr = *_fdopen(hConHandle, "w");
setvbuf(stderr, NULL, _IONBF, 0);
}
CONSOLE_SCREEN_BUFFER_INFO cinfo;
DWORD cmode = 0;
GetConsoleMode(hSTDOUT, &cmode);
cmode |= (ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT);
SetConsoleMode(hSTDOUT, cmode);
SetConsoleMode(hSTDERR, cmode);
GetConsoleScreenBufferInfo(hSTDOUT, &cinfo);
stdoutAttrs = cinfo.wAttributes;
return 0;
}