97 lines
1.8 KiB
C
97 lines
1.8 KiB
C
// display.c
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// Author: Josh Holtrop
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// Date: 08/07/04
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// Modified: 08/21/04
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#include "fs/devices.h"
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#include "char/vconsole.h"
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#include "display.h"
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#include "lang/lang.h"
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int display_activeConsole = -1; // start with no active console
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display_t myDisplays[12]; // f1-f12 change displays
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// initialization routine for display subsystem
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int display_init()
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{
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minor_t vc;
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if ((vc = vconsole_new(80, 25)))
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{
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myDisplays[11].type = DISPLAY_CONSOLE;
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myDisplays[11].id = vc;
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display_activeConsole = vc;
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}
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int i;
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for (i = 0; i < 6; i++)
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{
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if ((vc = vconsole_new(80, 25)))
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{
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myDisplays[i].type = DISPLAY_CONSOLE;
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myDisplays[i].id = vc;
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}
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}
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return 0;
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}
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// activate the given display
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int display_activate(u32_t id)
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{
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if (id > 11)
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return -1;
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switch (myDisplays[id].type)
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{
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case DISPLAY_CONSOLE:
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display_activeConsole = myDisplays[id].id;
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return vconsole_draw(display_activeConsole);
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case DISPLAY_GRAPHICAL:
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default:
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return -2;
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}
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}
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// routine to refresh a console window
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int display_console_draw(minor_t id, int cursorPosition, u16_t *buffer)
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{
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if (id == display_activeConsole)
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{
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int i;
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for (i = 0; i < 12; i++)
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{
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if (myDisplays[i].id == id)
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{
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memcpyw((void *)CONSOLE_MEMORY, buffer, 2000);
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writeCursorPosition(cursorPosition);
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return 0;
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}
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}
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}
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return -1;
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}
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// write a character to the screen
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int display_console_put_char(minor_t id, u16_t c, int position)
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{
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if (id == display_activeConsole)
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{
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*(u16_t *)(CONSOLE_MEMORY + (position << 1)) = c;
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return 0;
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}
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return -1;
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}
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// move the cursor on the screen
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int display_console_update_cursor(minor_t id, int cursorPosition)
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{
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if (id == display_activeConsole)
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{
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writeCursorPosition(cursorPosition);
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return 0;
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}
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return -1;
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}
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