356 lines
9.2 KiB
C
356 lines
9.2 KiB
C
/* interface.c */
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/* The primary purpose of this function is to provide CONSOLE_*
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reotines that immediately call the appropiate driver handler.
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This cleans up code in the individual modules considerably.
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This could be done using a macro, but additional functionality
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may be provided here in the future. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "config.h"
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#include "windef.h"
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#include "console.h"
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#include "options.h"
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CONSOLE_device driver;
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static int pop_driver(char **, char **, int *);
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static int console_initialized = FALSE;
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int CONSOLE_Init(char *drivers)
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{
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/* When this function is called drivers should be a string
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that consists of driver names followed by plus (+) signs
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to denote additions.
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For example:
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drivers = tty Load just the tty driver
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drivers = ncurses+xterm Load ncurses then xterm
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The "default" value is just tty.
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*/
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char *single;
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int length;
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char initial_rows[5];
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char initial_columns[5];
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/* Suitable defaults... */
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driver.console_out = stdout;
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driver.console_in = stdin;
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while (pop_driver(&drivers, &single, &length))
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{
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if (!strncmp(single, "tty", length))
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TTY_Start();
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#ifdef WINE_NCURSES
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else if (!strncmp(single, "ncurses", length))
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NCURSES_Start();
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#endif /* WINE_NCURSES */
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else if (!strncmp(single, "xterm", length))
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XTERM_Start();
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}
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/* Read in generic configuration */
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/* This is primarily to work around a limitation in nxterm where
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this information is not correctly passed to the ncurses layer
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through the terminal. At least, I'm not doing it correctly if there
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is a way. But this serves as a generic way to do the same anyway. */
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/* We are setting this to 80x25 here which is *not* the default for
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most xterm variants... It is however the standard VGA resolution */
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/* FIXME: We need to be able to be able to specify that the window's
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dimensions should be used. This is required for correct emulation
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of Win32's console and Win32's DOS emulation */
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PROFILE_GetWineIniString("console", "InitialRows",
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"24", initial_rows, 5);
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PROFILE_GetWineIniString("console", "InitialColumns",
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"80", initial_columns, 5);
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sscanf(initial_rows, "%d", &driver.y_res);
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sscanf(initial_columns, "%d", &driver.x_res);
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GENERIC_Start();
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if (driver.init)
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driver.init();
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/* Not all terminals let our programs know the proper resolution
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if the resolution is set on the command-line... */
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CONSOLE_NotifyResizeScreen(driver.x_res, driver.y_res);
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/* For now, always return TRUE */
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return TRUE;
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}
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void CONSOLE_Write(char out, int fg_color, int bg_color, int attribute)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.write)
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{
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driver.write(out, fg_color, bg_color, attribute);
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if (!driver.norefresh)
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CONSOLE_Refresh();
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}
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}
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void CONSOLE_Close()
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{
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if (driver.close)
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driver.close();
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}
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void CONSOLE_MoveCursor(char row, char col)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.moveCursor)
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{
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driver.moveCursor(row, col);
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if (!driver.norefresh)
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CONSOLE_Refresh();
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}
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}
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void CONSOLE_ClearWindow(char row1, char col1, char row2, char col2,
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int bg_color, int attribute)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.clearWindow)
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{
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driver.clearWindow(row1, col1, row2, col2, bg_color, attribute);
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if (!driver.norefresh)
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CONSOLE_Refresh();
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}
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}
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void CONSOLE_ScrollUpWindow(char row1, char col1, char row2, char col2,
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char lines, int bg_color, int attribute)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.scrollUpWindow)
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{
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driver.scrollUpWindow(row1, col1, row2, col2, lines, bg_color,
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attribute);
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if (!driver.norefresh)
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CONSOLE_Refresh();
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}
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}
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void CONSOLE_ScrollDownWindow(char row1, char col1, char row2, char col2,
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char lines, int bg_color, int attribute)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.scrollDownWindow)
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{
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driver.scrollDownWindow(row1, col1, row2, col2, lines, bg_color,
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attribute);
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if (!driver.norefresh)
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CONSOLE_Refresh();
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}
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}
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int CONSOLE_CheckForKeystroke(char *scan, char *ascii)
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/* These functions need to go through a conversion layer. Scancodes
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should *not* be determined by the driver, rather they should have
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a conv_* function in int16.c. Yuck. */
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.checkForKeystroke)
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return driver.checkForKeystroke(scan, ascii);
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else
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return FALSE;
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}
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void CONSOLE_GetKeystroke(char *scan, char *ascii)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.getKeystroke)
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driver.getKeystroke(scan, ascii);
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}
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void CONSOLE_GetCursorPosition(char *row, char *col)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.getCursorPosition)
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driver.getCursorPosition(row, col);
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}
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void CONSOLE_GetCharacterAtCursor(char *ch, int *fg, int *bg, int *a)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.getCharacterAtCursor)
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driver.getCharacterAtCursor(ch, fg, bg, a);
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}
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void CONSOLE_Refresh()
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.refresh)
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driver.refresh();
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}
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int CONSOLE_AllocColor(int color)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.allocColor)
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return driver.allocColor(color);
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else
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return 0;
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}
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void CONSOLE_ClearScreen()
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.clearScreen)
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{
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driver.clearScreen();
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if (!driver.norefresh)
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CONSOLE_Refresh();
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}
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}
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char CONSOLE_GetCharacter()
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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/* I'm not sure if we need this really. This is a function that can be
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accelerated that returns the next *non extended* keystroke */
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if (driver.getCharacter)
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return driver.getCharacter();
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else
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return (char) 0; /* Sure, this will probably break programs... */
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}
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void CONSOLE_ResizeScreen(int x, int y)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.resizeScreen)
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driver.resizeScreen(x, y);
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}
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void CONSOLE_NotifyResizeScreen(int x, int y)
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{
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if (driver.notifyResizeScreen)
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driver.notifyResizeScreen(x, y);
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}
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void CONSOLE_SetBackgroundColor(int fg, int bg)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.setBackgroundColor)
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driver.setBackgroundColor(fg, bg);
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}
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void CONSOLE_GetBackgroundColor(int *fg, int *bg)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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if (driver.getBackgroundColor)
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driver.getBackgroundColor(fg, bg);
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}
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void CONSOLE_WriteRawString(char *str)
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{
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if (!console_initialized)
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console_initialized = CONSOLE_Init(driver.driver_list);
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/* This is a special function that is only for internal use and
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does not actually call any of the console drivers. It's
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primary purpose is to provide a way for higher-level drivers
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to write directly to the underlying terminal without worry that
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there will be any retranslation done by the assorted drivers. Care
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should be taken to ensure that this only gets called when the thing
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written does not actually produce any output or a CONSOLE_Redraw()
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is called immediately afterwards.
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CONSOLE_Redraw() is not yet implemented.
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*/
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fprintf(driver.console_out, "%s", str);
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}
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/* This function is only at the CONSOLE level. */
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/* Admittably, calling the variable norefresh might be a bit dumb...*/
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void CONSOLE_SetRefresh(int setting)
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{
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if (setting)
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driver.norefresh = FALSE;
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else
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driver.norefresh = TRUE;
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}
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/* This function is only at the CONSOLE level. */
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int CONSOLE_GetRefresh()
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{
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if (driver.norefresh)
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return FALSE;
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else
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return TRUE;
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}
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/* Utility functions... */
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int pop_driver(char **drivers, char **single, int *length)
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{
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/* Take the string in drivers and extract the first "driver" entry */
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/* Advance the pointer in drivers to the next entry, put the origional
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pointer in single, and put the length in length. */
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/* Return TRUE if we found one */
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if (!*drivers)
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return FALSE;
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*single = *drivers;
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*length = 0;
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while ((*drivers[0] != NULL) && (*drivers[0] != '+'))
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{
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(*drivers)++;
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(*length)++;
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}
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while (*drivers[0] == '+')
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(*drivers)++;
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if (*length)
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return TRUE;
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else
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return FALSE;
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}
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