Added console support.
diff --git a/console/generic.c b/console/generic.c
new file mode 100644
index 0000000..ff2ea5e
--- /dev/null
+++ b/console/generic.c
@@ -0,0 +1,163 @@
+/* generic.c */
+
+/* This is a driver to implement, when possible, "high-level"
+ routines using only low level calls. This is to make it possible
+ to have accelerated functions for the individual drivers...
+ or to simply not bother with them. */
+
+/* When creating new drivers, you need to assign all the functions that
+ that driver supports into the driver struct. If it is a supplementary
+ driver, it should make sure to perserve the old values. */
+
+#include <stdio.h>
+#include "console.h"
+#include "config.h"
+#include "debug.h"
+
+void GENERIC_Start()
+{
+ /* Here, we only want to add a driver if there is not one already
+ defined. */
+
+ TRACE(console, "GENERIC_Start\n");
+
+ if (!driver.clearWindow)
+ driver.clearWindow = GENERIC_ClearWindow;
+
+ if (!driver.scrollUpWindow)
+ driver.scrollUpWindow = GENERIC_ScrollUpWindow;
+
+ if (!driver.scrollDownWindow)
+ driver.scrollDownWindow = GENERIC_ScrollDownWindow;
+
+ if (!driver.getCharacter)
+ driver.getCharacter = GENERIC_GetCharacter;
+}
+
+void GENERIC_ClearWindow(char row1, char col1, char row2, char col2,
+ int bg_color, int attribute)
+{
+ char trow, tcol;
+ char x, y;
+ int old_refresh;
+
+ TRACE(console, "GENERIC_ClearWindow()\n");
+ /* Abort if we have only partial functionality */
+ if (!(driver.getCursorPosition && driver.moveCursor && driver.write))
+ return;
+
+ old_refresh = CONSOLE_GetRefresh();
+ CONSOLE_SetRefresh(FALSE);
+
+ CONSOLE_GetCursorPosition(&trow, &tcol);
+
+ for (x = row1; x < row2; x++)
+ {
+ CONSOLE_MoveCursor(x, col1);
+
+ for (y = col1; y < col2; y++)
+ {
+ CONSOLE_Write(' ', 0, bg_color, attribute);
+ }
+ }
+ CONSOLE_MoveCursor(trow, tcol);
+
+ CONSOLE_SetRefresh(old_refresh);
+
+ TRACE(console, "GENERIC_ClearWindow() completed.\n");
+}
+
+/* These are in-progress. I just haven't finished them yet... */
+void GENERIC_ScrollUpWindow(char row1, char col1, char row2, char col2,
+ char lines, int bg_color, int attribute)
+{
+ char trow, tcol;
+ int x, y;
+ char ch;
+ int bg, fg, attr;
+ int old_refresh;
+
+ TRACE(console, "GENERIC_ScrollUpWindow()\n");
+
+ /* Abort if we have only partial functionality */
+ if (!(driver.getCursorPosition && driver.moveCursor && driver.write
+ && driver.getCharacterAtCursor && driver.clearWindow))
+ return;
+
+ old_refresh = CONSOLE_GetRefresh();
+ CONSOLE_SetRefresh(FALSE);
+
+ CONSOLE_GetCursorPosition(&trow, &tcol);
+
+ for (x = row1 + lines; x < row2; x++)
+ {
+ for (y = col1; y < col2; y++)
+ {
+ CONSOLE_MoveCursor(x, y);
+ CONSOLE_GetCharacterAtCursor(&ch, &fg, &bg, &attr);
+ CONSOLE_MoveCursor(x - lines, y);
+ CONSOLE_Write(ch, fg, bg, attr);
+ }
+ }
+ CONSOLE_ClearWindow(row2 - lines, col1, row2, col2, bg_color,
+ attribute);
+ CONSOLE_MoveCursor(trow, tcol);
+
+ CONSOLE_SetRefresh(old_refresh);
+
+ TRACE(console, "GENERIC_ScrollUpWindow() completed.\n");
+}
+
+void GENERIC_ScrollDownWindow(char row1, char col1, char row2, char col2,
+ char lines, int bg_color, int attribute)
+{
+ char trow, tcol;
+ int x, y;
+ char ch;
+ int bg, fg, attr;
+ int old_refresh;
+
+ TRACE(console, "GENERIC_ScrollDownWindow()\n");
+
+ /* Abort if we have only partial functionality */
+ if (!(driver.getCursorPosition && driver.moveCursor && driver.write
+ && driver.getCharacterAtCursor && driver.clearWindow))
+ return;
+
+ old_refresh = CONSOLE_GetRefresh();
+ CONSOLE_SetRefresh(FALSE);
+
+ CONSOLE_GetCursorPosition(&trow, &tcol);
+
+ for (x = row2 - lines; x > row1; x--)
+ {
+ for (y = col1; y < col2; y++)
+ {
+ CONSOLE_MoveCursor(x, y);
+ CONSOLE_GetCharacterAtCursor(&ch, &fg, &bg, &attr);
+ CONSOLE_MoveCursor(x + lines, y);
+ CONSOLE_Write(ch, fg, bg, attr);
+ }
+ }
+ CONSOLE_ClearWindow(row1, col1, row1 + lines, col2, bg_color,
+ attribute);
+ CONSOLE_MoveCursor(trow, tcol);
+
+ CONSOLE_SetRefresh(old_refresh);
+
+ TRACE(console, "GENERIC_ScrollDownWindow() completed.\n");
+
+}
+
+char GENERIC_GetCharacter()
+{
+ /* Keep getting keys until we get one with a char value */
+ char ch = (char) 0, scan;
+
+ while (!ch)
+ {
+ CONSOLE_GetKeystroke(&ch, &scan);
+ }
+ return ch;
+}
+
