FreeBSD-5.3/lib/libvgl/mouse.c
/*-
* Copyright (c) 1991-1997 Søren Schmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libvgl/mouse.c,v 1.6 2002/06/02 20:05:39 schweikh Exp $");
#include <stdio.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/signal.h>
#include <sys/consio.h>
#include <sys/fbio.h>
#include "vgl.h"
#define X 0xff
static byte StdAndMask[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE] = {
X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,0,
0,0,0,X,X,X,X,X,0,0,0,0,0,0,0,0,
0,0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,
0,0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
};
static byte StdOrMask[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE] = {
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,
0,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,
0,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,
0,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
0,X,X,0,X,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
};
#undef X
static VGLBitmap VGLMouseStdAndMask =
VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, StdAndMask);
static VGLBitmap VGLMouseStdOrMask =
VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, StdOrMask);
static VGLBitmap *VGLMouseAndMask, *VGLMouseOrMask;
static byte map[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE];
static VGLBitmap VGLMouseSave =
VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, map);
static int VGLMouseVisible = 0;
static int VGLMouseFrozen = 0;
static int VGLMouseShown = 0;
static int VGLMouseXpos = 0;
static int VGLMouseYpos = 0;
static int VGLMouseButtons = 0;
void
VGLMousePointerShow()
{
byte buf[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE];
VGLBitmap buffer =
VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, buf);
byte crtcidx, crtcval, gdcidx, gdcval;
int pos;
if (!VGLMouseVisible) {
VGLMouseVisible = 1;
crtcidx = inb(0x3c4);
crtcval = inb(0x3c5);
gdcidx = inb(0x3ce);
gdcval = inb(0x3cf);
__VGLBitmapCopy(VGLDisplay, VGLMouseXpos, VGLMouseYpos,
&VGLMouseSave, 0, 0, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
bcopy(VGLMouseSave.Bitmap, buffer.Bitmap, MOUSE_IMG_SIZE*MOUSE_IMG_SIZE);
for (pos = 0; pos < MOUSE_IMG_SIZE*MOUSE_IMG_SIZE; pos++)
buffer.Bitmap[pos]=(buffer.Bitmap[pos]&~(VGLMouseAndMask->Bitmap[pos])) |
VGLMouseOrMask->Bitmap[pos];
__VGLBitmapCopy(&buffer, 0, 0, VGLDisplay,
VGLMouseXpos, VGLMouseYpos, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
outb(0x3c4, crtcidx);
outb(0x3c5, crtcval);
outb(0x3ce, gdcidx);
outb(0x3cf, gdcval);
}
}
void
VGLMousePointerHide()
{
byte crtcidx, crtcval, gdcidx, gdcval;
if (VGLMouseVisible) {
VGLMouseVisible = 0;
crtcidx = inb(0x3c4);
crtcval = inb(0x3c5);
gdcidx = inb(0x3ce);
gdcval = inb(0x3cf);
__VGLBitmapCopy(&VGLMouseSave, 0, 0, VGLDisplay,
VGLMouseXpos, VGLMouseYpos, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
outb(0x3c4, crtcidx);
outb(0x3c5, crtcval);
outb(0x3ce, gdcidx);
outb(0x3cf, gdcval);
}
}
void
VGLMouseMode(int mode)
{
if (mode == VGL_MOUSESHOW) {
if (VGLMouseShown == VGL_MOUSEHIDE) {
VGLMousePointerShow();
VGLMouseShown = VGL_MOUSESHOW;
}
}
else {
if (VGLMouseShown == VGL_MOUSESHOW) {
VGLMousePointerHide();
VGLMouseShown = VGL_MOUSEHIDE;
}
}
}
void
VGLMouseAction(int dummy)
{
struct mouse_info mouseinfo;
if (VGLMouseFrozen) {
VGLMouseFrozen++;
return;
}
mouseinfo.operation = MOUSE_GETINFO;
ioctl(0, CONS_MOUSECTL, &mouseinfo);
if (VGLMouseShown == VGL_MOUSESHOW)
VGLMousePointerHide();
VGLMouseXpos = mouseinfo.u.data.x;
VGLMouseYpos = mouseinfo.u.data.y;
VGLMouseButtons = mouseinfo.u.data.buttons;
if (VGLMouseShown == VGL_MOUSESHOW)
VGLMousePointerShow();
}
void
VGLMouseSetImage(VGLBitmap *AndMask, VGLBitmap *OrMask)
{
if (VGLMouseShown == VGL_MOUSESHOW)
VGLMousePointerHide();
VGLMouseAndMask = AndMask;
VGLMouseOrMask = OrMask;
if (VGLMouseShown == VGL_MOUSESHOW)
VGLMousePointerShow();
}
void
VGLMouseSetStdImage()
{
if (VGLMouseShown == VGL_MOUSESHOW)
VGLMousePointerHide();
VGLMouseAndMask = &VGLMouseStdAndMask;
VGLMouseOrMask = &VGLMouseStdOrMask;
if (VGLMouseShown == VGL_MOUSESHOW)
VGLMousePointerShow();
}
int
VGLMouseInit(int mode)
{
struct mouse_info mouseinfo;
int error;
VGLMouseSetStdImage();
mouseinfo.operation = MOUSE_MODE;
mouseinfo.u.mode.signal = SIGUSR2;
if ((error = ioctl(0, CONS_MOUSECTL, &mouseinfo)))
return error;
signal(SIGUSR2, VGLMouseAction);
mouseinfo.operation = MOUSE_GETINFO;
ioctl(0, CONS_MOUSECTL, &mouseinfo);
VGLMouseXpos = mouseinfo.u.data.x;
VGLMouseYpos = mouseinfo.u.data.y;
VGLMouseButtons = mouseinfo.u.data.buttons;
VGLMouseMode(mode);
return 0;
}
int
VGLMouseStatus(int *x, int *y, char *buttons)
{
signal(SIGUSR2, SIG_IGN);
*x = VGLMouseXpos;
*y = VGLMouseYpos;
*buttons = VGLMouseButtons;
signal(SIGUSR2, VGLMouseAction);
return VGLMouseShown;
}
int
VGLMouseFreeze(int x, int y, int width, int hight, byte color)
{
if (!VGLMouseFrozen) {
VGLMouseFrozen = 1;
if (width > 1 || hight > 1) { /* bitmap */
if (VGLMouseShown == 1) {
int overlap;
if (x > VGLMouseXpos)
overlap = (VGLMouseXpos + MOUSE_IMG_SIZE) - x;
else
overlap = (x + width) - VGLMouseXpos;
if (overlap > 0) {
if (y > VGLMouseYpos)
overlap = (VGLMouseYpos + MOUSE_IMG_SIZE) - y;
else
overlap = (y + hight) - VGLMouseYpos;
if (overlap > 0)
VGLMousePointerHide();
}
}
}
else { /* bit */
if (VGLMouseShown &&
x >= VGLMouseXpos && x < VGLMouseXpos + MOUSE_IMG_SIZE &&
y >= VGLMouseYpos && y < VGLMouseYpos + MOUSE_IMG_SIZE) {
VGLMouseSave.Bitmap[(y-VGLMouseYpos)*MOUSE_IMG_SIZE+(x-VGLMouseXpos)] =
(color);
if (VGLMouseAndMask->Bitmap
[(y-VGLMouseYpos)*MOUSE_IMG_SIZE+(x-VGLMouseXpos)]) {
return 1;
}
}
}
}
return 0;
}
void
VGLMouseUnFreeze()
{
if (VGLMouseFrozen > 1) {
VGLMouseFrozen = 0;
VGLMouseAction(0);
}
else {
VGLMouseFrozen = 0;
if (VGLMouseShown == VGL_MOUSESHOW && !VGLMouseVisible)
VGLMousePointerShow();
}
}