keyboard.c - Call tcsetattr() in VGLKeyboardEnd() to restore tty, only when tty attributes have been previously saved. PR: misc/9524 Submitted by: Katusyuki 'kei' Maeda (kei@nanet.co.jp) - Set up the tty raw mode correctly. main.c - Restore VESA_800x600 raster text mode correctly in VGLEnd(). Submitted by: des text.c - Allocate the correct size of a font buffer in VGLSetFontFile(). I forgot the submitter ;-( simple.c, bitmap.c - Fix address calculation for the VGA mode X in VGLGetXY() and VGLBitmapCopy(). - Fix typo (dsty -> dstx) in __VGLBitmapCopy(). Reviewed by: sos
244 lines
5.7 KiB
C
244 lines
5.7 KiB
C
/*-
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* Copyright (c) 1991-1997 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: main.c,v 1.2 1997/10/01 20:53:39 sos Exp $
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/signal.h>
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <machine/console.h>
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#include "vgl.h"
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VGLBitmap *VGLDisplay;
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static int VGLMode;
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static int VGLOldMode;
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static byte *VGLBuf;
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static byte *VGLMem;
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static int VGLSwitchPending;
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static int VGLOnDisplay;
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static int VGLInitDone = 0;
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void
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VGLEnd()
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{
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struct vt_mode smode;
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if (!VGLInitDone)
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return;
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/*
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while (!VGLOnDisplay) pause();
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VGLCheckSwitch();;
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*/
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outb(0x3c4, 0x02);
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outb(0x3c5, 0x0f);
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bzero(VGLMem, 64*1024);
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if (VGLOldMode >= M_VESA_BASE) {
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/* ugly, but necessary */
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ioctl(0, _IO('V', VGLOldMode - M_VESA_BASE), 0);
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if (VGLOldMode == M_VESA_800x600) {
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int size[3];
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size[0] = 80;
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size[1] = 25;
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size[2] = 16;
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ioctl(0, KDRASTER, size);
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}
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} else {
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ioctl(0, _IO('S', VGLOldMode), 0);
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}
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ioctl(0, KDDISABIO, 0);
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ioctl(0, KDSETMODE, KD_TEXT);
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smode.mode = VT_AUTO;
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ioctl(0, VT_SETMODE, &smode);
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free(VGLBuf);
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free(VGLDisplay);
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VGLKeyboardEnd();
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}
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static void
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VGLAbort()
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{
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VGLEnd();
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exit(0);
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}
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static void
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VGLSwitch()
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{
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if (!VGLOnDisplay)
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VGLOnDisplay = 1;
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else
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VGLOnDisplay = 0;
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VGLSwitchPending = 1;
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signal(SIGUSR1, VGLSwitch);
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}
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int
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VGLInit(int mode)
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{
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struct vt_mode smode;
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struct winsize winsz;
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int error;
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signal(SIGUSR1, VGLSwitch);
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signal(SIGINT, VGLAbort);
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signal(SIGSEGV, VGLAbort);
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signal(SIGBUS, VGLAbort);
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VGLOnDisplay = 1;
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VGLSwitchPending = 0;
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ioctl(0, CONS_GET, &VGLOldMode);
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VGLMem = (byte*)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_FILE,
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open("/dev/mem", O_RDWR), 0xA0000);
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if (VGLMem <= (byte*)0)
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return 1;
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VGLBuf = (byte*)malloc(256*1024);
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if (VGLBuf == NULL)
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return 1;
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VGLDisplay = (VGLBitmap*) malloc(sizeof(VGLBitmap));
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if (VGLDisplay == NULL) {
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free(VGLBuf);
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return 1;
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}
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switch (mode) {
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case SW_BG640x480: case SW_CG640x480:
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VGLDisplay->Type = VIDBUF4;
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break;
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case SW_VGA_CG320:
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VGLDisplay->Type = VIDBUF8;
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break;
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case SW_VGA_MODEX:
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VGLDisplay->Type = VIDBUF8X;
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break;
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default:
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VGLEnd();
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return 1;
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}
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if ((error = ioctl(0, KDENABIO, 0)))
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return error;
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ioctl(0, VT_WAITACTIVE, 0);
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ioctl(0, KDSETMODE, KD_GRAPHICS);
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if ((error = ioctl(0, mode, 0))) {
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ioctl(0, KDSETMODE, KD_TEXT);
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ioctl(0, KDDISABIO, 0);
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return error;
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}
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VGLMode = mode;
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outb(0x3c4, 0x02);
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outb(0x3c5, 0x0f);
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bzero(VGLMem, 64*1024);
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if (ioctl(0, TIOCGWINSZ, &winsz)) {
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VGLEnd();
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return 1;
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}
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VGLDisplay->Bitmap = VGLMem;
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VGLDisplay->Xsize = winsz.ws_xpixel;
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VGLDisplay->Ysize = winsz.ws_ypixel;
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VGLSavePalette();
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smode.mode = VT_PROCESS;
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smode.waitv = 0;
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smode.relsig = SIGUSR1;
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smode.acqsig = SIGUSR1;
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smode.frsig = SIGINT;
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if (ioctl(0, VT_SETMODE, &smode) == -1) {
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VGLEnd();
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return 1;
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}
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VGLTextSetFontFile((byte*)0);
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VGLInitDone = 1;
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return 0;
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}
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void
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VGLCheckSwitch()
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{
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if (VGLSwitchPending) {
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int i;
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VGLSwitchPending = 0;
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if (VGLOnDisplay) {
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ioctl(0, KDENABIO, 0);
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ioctl(0, KDSETMODE, KD_GRAPHICS);
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ioctl(0, VGLMode, 0);
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outb(0x3c6, 0xff);
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for (i=0; i<4; i++) {
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outb(0x3c4, 0x02);
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outb(0x3c5, 0x01<<i);
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bcopy(&VGLBuf[i*64*1024], VGLMem, 64*1024);
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}
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VGLRestorePalette();
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ioctl(0, VT_RELDISP, VT_ACKACQ);
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VGLDisplay->Bitmap = VGLMem;
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switch (VGLMode) {
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case SW_BG640x480: case SW_CG640x480:
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VGLDisplay->Type = VIDBUF4;
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break;
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case SW_VGA_CG320:
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VGLDisplay->Type = VIDBUF8;
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break;
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case SW_VGA_MODEX:
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VGLDisplay->Type = VIDBUF8X;
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break;
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default:
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VGLDisplay->Type = VIDBUF8; /* XXX */
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break;
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}
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}
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else {
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for (i=0; i<4; i++) {
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outb(0x3ce, 0x04);
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outb(0x3cf, i);
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bcopy(VGLMem, &VGLBuf[i*64*1024], 64*1024);
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}
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ioctl(0, VGLOldMode, 0);
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ioctl(0, KDSETMODE, KD_TEXT);
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ioctl(0, KDDISABIO, 0);
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ioctl(0, VT_RELDISP, VT_TRUE);
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VGLDisplay->Bitmap = VGLBuf;
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VGLDisplay->Type = MEMBUF;
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}
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}
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while (!VGLOnDisplay) pause();
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}
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