379 lines
11 KiB
C++
Executable File
379 lines
11 KiB
C++
Executable File
//-----------------------------------------------------------------------------
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// Torque Game Engine
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// Copyright (C) GarageGames.com, Inc.
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//-----------------------------------------------------------------------------
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#include "platformX86UNIX/platformX86UNIX.h"
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#include "platformX86UNIX/x86UNIXStdConsole.h"
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#include "platformX86UNIX/x86UNIXUtils.h"
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#include "platform/event.h"
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#include "platform/gameInterface.h"
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#include <signal.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <fcntl.h>
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StdConsole *stdConsole = NULL;
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ConsoleFunction(enableWinConsole, void, 2, 2, "enableWinConsole(bool);")
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{
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argc;
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if (stdConsole)
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stdConsole->enable(dAtob(argv[1]));
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}
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void StdConsole::create()
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{
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if (stdConsole == NULL)
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stdConsole = new StdConsole();
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}
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void StdConsole::destroy()
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{
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if (stdConsole && stdConsole->isEnabled())
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stdConsole->enable(false);
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delete stdConsole;
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stdConsole = NULL;
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}
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static void signalHandler(int sigtype)
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{
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if (sigtype == SIGCONT && stdConsole != NULL)
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stdConsole->resetTerminal();
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}
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void StdConsole::resetTerminal()
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{
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if (stdConsoleEnabled)
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{
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/* setup the proper terminal modes */
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struct termios termModes;
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tcgetattr(stdIn, &termModes);
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termModes.c_lflag &= ~ICANON; // enable non-canonical mode
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termModes.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHOKE);
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termModes.c_cc[VMIN] = 0;
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termModes.c_cc[VTIME] = 5;
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tcsetattr(stdIn, TCSAFLUSH, &termModes);
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}
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}
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void StdConsole::enable(bool enabled)
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{
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if (enabled && !stdConsoleEnabled)
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{
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stdConsoleEnabled = true;
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// install signal handler for sigcont
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signal(SIGCONT, &signalHandler);
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// save the terminal state
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if (originalTermState == NULL)
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originalTermState = new termios;
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tcgetattr(stdIn, originalTermState);
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// put the terminal into our preferred mode
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resetTerminal();
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printf("%s", Con::getVariable("Con::Prompt"));
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}
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else if (!enabled && stdConsoleEnabled)
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{
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stdConsoleEnabled = false;
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// uninstall signal handler
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signal(SIGCONT, SIG_DFL);
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// reset the original terminal state
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if (originalTermState != NULL)
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tcsetattr(stdIn, TCSANOW, originalTermState);
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}
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}
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bool StdConsole::isEnabled()
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{
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if ( stdConsole )
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return stdConsole->stdConsoleEnabled;
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return false;
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}
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static void stdConsoleConsumer(ConsoleLogEntry::Level, const char *line)
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{
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stdConsole->processConsoleLine(line);
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}
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StdConsole::StdConsole()
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{
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for (S32 iIndex = 0; iIndex < MAX_CMDS; iIndex ++)
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rgCmds[iIndex][0] = '\0';
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stdOut = dup(1);
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stdIn = dup(0);
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stdErr = dup(2);
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iCmdIndex = 0;
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stdConsoleEnabled = false;
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Con::addConsumer(stdConsoleConsumer);
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inpos = 0;
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lineOutput = false;
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inBackground = false;
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originalTermState = NULL;
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}
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StdConsole::~StdConsole()
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{
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Con::removeConsumer(stdConsoleConsumer);
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if (stdConsoleEnabled)
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enable(false);
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if (originalTermState != NULL)
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{
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delete originalTermState;
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originalTermState = NULL;
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}
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}
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void StdConsole::printf(const char *s, ...)
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{
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// Get the line into a buffer.
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static const int BufSize = 4096;
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static char buffer[BufSize];
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va_list args;
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va_start(args, s);
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vsnprintf(buffer, BufSize, s, args);
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// Replace tabs with carats, like the "real" console does.
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char *pos = buffer;
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while (*pos) {
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if (*pos == '\t') {
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*pos = '^';
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}
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pos++;
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}
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// Axe the color characters.
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Con::stripColorChars(buffer);
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// Print it.
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write(stdOut, buffer, strlen(buffer));
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fflush(stdout);
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}
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void StdConsole::processConsoleLine(const char *consoleLine)
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{
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if(stdConsoleEnabled)
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{
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inbuf[inpos] = 0;
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if(lineOutput)
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printf("%s\n", consoleLine);
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else
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printf("%c%s\n%s%s", '\r', consoleLine, Con::getVariable("Con::Prompt"), inbuf);
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}
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}
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void StdConsole::process()
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{
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if(stdConsoleEnabled)
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{
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//U16 key;
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char typedData[64]; // damn, if you can type this fast... :-D
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if (UUtils->inBackground())
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// we don't have the terminal
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inBackground = true;
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else
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{
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// if we were in the background, reset the terminal
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if (inBackground)
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resetTerminal();
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inBackground = false;
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}
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// see if stdIn has any input waiting
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// mojo for select call
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fd_set rfds;
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struct timeval tv;
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int retval;
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FD_ZERO(&rfds);
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FD_SET(stdIn, &rfds);
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// don't wait at all in select
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tv.tv_sec = 0;
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tv.tv_usec = 0;
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int numEvents = select(stdIn+1, &rfds, NULL, NULL, &tv);
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if (numEvents <= 0)
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// no data available
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return;
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numEvents = read(stdIn, typedData, 64);
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if (numEvents == -1)
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return;
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typedData[numEvents] = '\0';
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if (numEvents > 0)
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{
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char outbuf[512];
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S32 outpos = 0;
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for (int i = 0; i < numEvents; i++)
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{
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switch(typedData[i])
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{
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case 8:
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case 127:
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/* backspace */
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if (inpos > 0)
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{
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outbuf[outpos++] = '\b';
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outbuf[outpos++] = ' ';
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outbuf[outpos++] = '\b';
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inpos--;
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}
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break;
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// XXX Don't know if we can detect shift-TAB. So, only handling
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// TAB for now.
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case '\t':
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// In the output buffer, we're going to have to erase the current line (in case
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// we're cycling through various completions) and write out the whole input
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// buffer, so (inpos * 3) + complen <= 512. Should be OK. The input buffer is
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// also 512 chars long so that constraint will also be fine for the input buffer.
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{
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// Erase the current line.
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U32 i;
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for (i = 0; i < inpos; i++) {
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outbuf[outpos++] = '\b';
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outbuf[outpos++] = ' ';
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outbuf[outpos++] = '\b';
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}
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// Modify the input buffer with the completion.
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U32 maxlen = 512 - (inpos * 3);
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inpos = Con::tabComplete(inbuf, inpos, maxlen, true);
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// Copy the input buffer to the output.
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for (i = 0; i < inpos; i++) {
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outbuf[outpos++] = inbuf[i];
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}
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}
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break;
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case '\n':
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/* new line */
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outbuf[outpos++] = '\n';
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inbuf[inpos] = 0;
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outbuf[outpos] = 0;
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printf("%s", outbuf);
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S32 eventSize;
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eventSize = 1;
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dStrcpy(postEvent.data, inbuf);
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postEvent.size = eventSize + dStrlen(inbuf) + 1;
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Game->postEvent(postEvent);
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// If we've gone off the end of our array, wrap
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// back to the beginning
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if (iCmdIndex >= MAX_CMDS)
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iCmdIndex %= MAX_CMDS;
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// Put the new command into the array
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strcpy(rgCmds[iCmdIndex ++], inbuf);
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printf("%s", Con::getVariable("Con::Prompt"));
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inpos = outpos = 0;
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break;
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case 27:
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// JMQTODO: are these magic numbers keyboard map specific?
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if (typedData[i+1] == 91 || typedData[i+1] == 79)
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{
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i += 2;
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// an arrow key was pressed.
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switch(typedData[i])
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{
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case 'A':
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/* up arrow */
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// Go to the previous command in the cyclic array
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if ((-- iCmdIndex) < 0)
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iCmdIndex = MAX_CMDS - 1;
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// If this command isn't empty ...
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if (rgCmds[iCmdIndex][0] != '\0')
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{
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// Obliterate current displayed text
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for (S32 i = outpos = 0; i < inpos; i ++)
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{
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outbuf[outpos++] = '\b';
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outbuf[outpos++] = ' ';
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outbuf[outpos++] = '\b';
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}
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// Copy command into command and display buffers
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for (inpos = 0; inpos < (S32)strlen(rgCmds[iCmdIndex]); inpos++, outpos++)
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{
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outbuf[outpos] = rgCmds[iCmdIndex][inpos];
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inbuf [inpos ] = rgCmds[iCmdIndex][inpos];
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}
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}
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// If previous is empty, stay on current command
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else if ((++ iCmdIndex) >= MAX_CMDS)
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{
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iCmdIndex = 0;
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}
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break;
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case 'B':
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/* down arrow */
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// Go to the next command in the command array, if
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// it isn't empty
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if (rgCmds[iCmdIndex][0] != '\0' && (++ iCmdIndex) >= MAX_CMDS)
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iCmdIndex = 0;
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// Obliterate current displayed text
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for (S32 i = outpos = 0; i < inpos; i ++)
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{
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outbuf[outpos++] = '\b';
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outbuf[outpos++] = ' ';
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outbuf[outpos++] = '\b';
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}
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// Copy command into command and display buffers
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for (inpos = 0; inpos < (S32)strlen(rgCmds[iCmdIndex]); inpos++, outpos++)
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{
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outbuf[outpos] = rgCmds[iCmdIndex][inpos];
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inbuf [inpos ] = rgCmds[iCmdIndex][inpos];
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}
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break;
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case 'C':
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/* right arrow */
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break;
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case 'D':
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/* left arrow */
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break;
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}
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// read again to get rid of a bad char.
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//read(stdIn, &key, sizeof(char));
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break;
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} else {
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inbuf[inpos++] = typedData[i];
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outbuf[outpos++] = typedData[i];
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break;
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}
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break;
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default:
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inbuf[inpos++] = typedData[i];
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outbuf[outpos++] = typedData[i];
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break;
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}
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}
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if (outpos)
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{
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outbuf[outpos] = 0;
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printf("%s", outbuf);
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}
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}
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}
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}
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