mirror of https://github.com/mpv-player/mpv
279 lines
8.2 KiB
C
279 lines
8.2 KiB
C
/* Windows TermIO
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*
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* copyright (C) 2003 Sascha Sommer
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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// See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/UserInput/VirtualKeyCodes.asp
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// for additional virtual keycodes
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#include "config.h"
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <windows.h>
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#include <io.h>
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#include <pthread.h>
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#include <assert.h>
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#include "common/common.h"
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#include "input/keycodes.h"
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#include "input/input.h"
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#include "terminal.h"
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#include "osdep/io.h"
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#include "osdep/w32_keyboard.h"
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#define hSTDOUT GetStdHandle(STD_OUTPUT_HANDLE)
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#define hSTDERR GetStdHandle(STD_ERROR_HANDLE)
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#define FOREGROUND_ALL (FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE)
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static short stdoutAttrs = 0;
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static const unsigned char ansi2win32[8] = {
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0,
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FOREGROUND_RED,
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FOREGROUND_GREEN,
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FOREGROUND_GREEN | FOREGROUND_RED,
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FOREGROUND_BLUE,
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FOREGROUND_BLUE | FOREGROUND_RED,
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FOREGROUND_BLUE | FOREGROUND_GREEN,
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FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED,
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};
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static bool running;
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static HANDLE death;
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static pthread_t input_thread;
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static struct input_ctx *input_ctx;
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void terminal_get_size(int *w, int *h)
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{
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CONSOLE_SCREEN_BUFFER_INFO cinfo;
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if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cinfo)) {
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*w = cinfo.dwMaximumWindowSize.X - 1;
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*h = cinfo.dwMaximumWindowSize.Y;
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}
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}
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static void read_input(void)
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{
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DWORD retval;
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HANDLE in = GetStdHandle(STD_INPUT_HANDLE);
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/*check if there are input events*/
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if (!GetNumberOfConsoleInputEvents(in, &retval))
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return;
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if (!retval)
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return;
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/*read all events*/
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INPUT_RECORD eventbuffer[128];
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if (!ReadConsoleInput(in, eventbuffer, MP_ARRAY_SIZE(eventbuffer), &retval))
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return;
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/*filter out keyevents*/
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for (int i = 0; i < retval; i++) {
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switch (eventbuffer[i].EventType) {
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case KEY_EVENT: {
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KEY_EVENT_RECORD *record = &eventbuffer[i].Event.KeyEvent;
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/*only a pressed key is interresting for us*/
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if (record->bKeyDown) {
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UINT vkey = record->wVirtualKeyCode;
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bool ext = record->dwControlKeyState & ENHANCED_KEY;
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int mpkey = mp_w32_vkey_to_mpkey(vkey, ext);
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if (mpkey) {
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mp_input_put_key(input_ctx, mpkey);
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} else {
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/*only characters should be remaining*/
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int c = record->uChar.UnicodeChar;
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if (c > 0)
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mp_input_put_key(input_ctx, c);
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}
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}
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break;
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}
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case MOUSE_EVENT:
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case WINDOW_BUFFER_SIZE_EVENT:
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case FOCUS_EVENT:
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case MENU_EVENT:
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default:
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break;
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}
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}
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return;
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}
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static void *input_thread_fn(void *ptr)
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{
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HANDLE in = GetStdHandle(STD_INPUT_HANDLE);
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HANDLE stuff[2] = {in, death};
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while (1) {
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DWORD r = WaitForMultipleObjects(2, stuff, FALSE, INFINITE);
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if (r != WAIT_OBJECT_0)
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break;
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read_input();
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}
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return NULL;
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}
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void terminal_setup_getch(struct input_ctx *ictx)
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{
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assert(!running);
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HANDLE in = GetStdHandle(STD_INPUT_HANDLE);
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if (GetNumberOfConsoleInputEvents(in, &(DWORD){0})) {
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input_ctx = ictx;
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death = CreateEvent(NULL, TRUE, FALSE, NULL);
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if (!death)
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return;
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if (pthread_create(&input_thread, NULL, input_thread_fn, NULL)) {
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CloseHandle(death);
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return;
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}
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running = true;
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}
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}
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void terminal_uninit(void)
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{
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if (running) {
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SetEvent(death);
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pthread_join(input_thread, NULL);
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input_ctx = NULL;
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running = false;
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}
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}
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bool terminal_in_background(void)
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{
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return false;
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}
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static void write_console_text(HANDLE wstream, char *buf)
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{
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wchar_t *out = mp_from_utf8(NULL, buf);
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size_t out_len = wcslen(out);
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WriteConsoleW(wstream, out, out_len, NULL, NULL);
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talloc_free(out);
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}
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// Mutates the input argument (buf), because we're evil.
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void mp_write_console_ansi(HANDLE wstream, char *buf)
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{
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while (*buf) {
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char *next = strchr(buf, '\033');
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if (!next) {
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write_console_text(wstream, buf);
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break;
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}
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next[0] = '\0'; // mutate input for fun and profit
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write_console_text(wstream, buf);
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if (next[1] != '[') {
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write_console_text(wstream, "\033");
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buf = next;
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continue;
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}
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next += 2;
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// ANSI codes generally follow this syntax:
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// "\033[" [ <i> (';' <i> )* ] <c>
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// where <i> are integers, and <c> a single char command code.
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// Also see: http://en.wikipedia.org/wiki/ANSI_escape_code#CSI_codes
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int params[2] = {-1, -1}; // 'm' might be unlimited; ignore that
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int num_params = 0;
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while (num_params < 2) {
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char *end = next;
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long p = strtol(next, &end, 10);
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if (end == next)
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break;
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next = end;
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params[num_params++] = p;
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if (next[0] != ';' || !next[0])
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break;
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next += 1;
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}
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char code = next[0];
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if (code)
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next += 1;
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CONSOLE_SCREEN_BUFFER_INFO info;
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GetConsoleScreenBufferInfo(wstream, &info);
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switch (code) {
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case 'K': { // erase to end of line
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COORD at = info.dwCursorPosition;
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int len = info.dwSize.X - at.X;
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FillConsoleOutputCharacterW(wstream, ' ', len, at, &(DWORD){0});
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SetConsoleCursorPosition(wstream, at);
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break;
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}
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case 'A': { // cursor up
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info.dwCursorPosition.Y -= 1;
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SetConsoleCursorPosition(wstream, info.dwCursorPosition);
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break;
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}
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case 'm': { // "SGR"
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for (int n = 0; n < num_params; n++) {
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int p = params[n];
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if (p == 0) {
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info.wAttributes = stdoutAttrs;
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SetConsoleTextAttribute(wstream, info.wAttributes);
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} else if (p == 1) {
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info.wAttributes |= FOREGROUND_INTENSITY;
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SetConsoleTextAttribute(wstream, info.wAttributes);
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} else if (p >= 30 && p < 38) {
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info.wAttributes &= ~FOREGROUND_ALL;
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info.wAttributes |= ansi2win32[p - 30];
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SetConsoleTextAttribute(wstream, info.wAttributes);
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}
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}
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break;
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}
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}
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buf = next;
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}
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}
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int terminal_init(void)
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{
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if (AttachConsole(ATTACH_PARENT_PROCESS)) {
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// We have been started by something with a console window.
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// Redirect output streams to that console's low-level handles,
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// so we can actually use WriteConsole later on.
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int hConHandle;
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hConHandle = _open_osfhandle((intptr_t)hSTDOUT, _O_TEXT);
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*stdout = *_fdopen(hConHandle, "w");
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setvbuf(stdout, NULL, _IONBF, 0);
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hConHandle = _open_osfhandle((intptr_t)hSTDERR, _O_TEXT);
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*stderr = *_fdopen(hConHandle, "w");
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setvbuf(stderr, NULL, _IONBF, 0);
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}
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CONSOLE_SCREEN_BUFFER_INFO cinfo;
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DWORD cmode = 0;
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GetConsoleMode(hSTDOUT, &cmode);
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cmode |= (ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT);
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SetConsoleMode(hSTDOUT, cmode);
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SetConsoleMode(hSTDERR, cmode);
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GetConsoleScreenBufferInfo(hSTDOUT, &cinfo);
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stdoutAttrs = cinfo.wAttributes;
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return 0;
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}
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