lib/libvgl/mouse.c

   1 /*-
   2  * Copyright (c) 1991-1997 Søren Schmidt
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer
  10  *    in this position and unchanged.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote products
  15  *    derived from this software withough specific prior written permission
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * $FreeBSD: src/lib/libvgl/mouse.c,v 1.3 1999/11/08 11:37:39 yokota Exp $
  29  * $DragonFly: src/lib/libvgl/mouse.c,v 1.2 2003/06/17 04:26:52 dillon Exp $
  30  */
  31
  32 #include <stdio.h>
  33 #include <sys/types.h>
  34 #include <sys/ioctl.h>
  35 #include <sys/signal.h>
  36 #include <machine/console.h>
  37 #include "vgl.h"
  38
  39 #define X 0xff
  40 static byte StdAndMask[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE] = {
  41         X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  42         X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,
  43         X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,
  44         X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,
  45         X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,
  46         X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
  47         X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,
  48         X,X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,
  49         X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
  50         0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,0,
  51         0,0,0,X,X,X,X,X,0,0,0,0,0,0,0,0,
  52         0,0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,
  53         0,0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,
  54         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  55         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  56         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  57 };
  58 static byte StdOrMask[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE] = {
  59         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  60         0,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  61         0,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,
  62         0,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,
  63         0,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,
  64         0,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,
  65         0,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
  66         0,X,X,0,X,0,0,0,0,0,0,0,0,0,0,0,
  67         0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,0,
  68         0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,0,
  69         0,0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,
  70         0,0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,
  71         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  72         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  73         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  74         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  75 };
  76 #undef X
  77 static VGLBitmap VGLMouseStdAndMask =
  78     VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, StdAndMask);
  79 static VGLBitmap VGLMouseStdOrMask =
  80     VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, StdOrMask);
  81 static VGLBitmap *VGLMouseAndMask, *VGLMouseOrMask;
  82 static byte map[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE];
  83 static VGLBitmap VGLMouseSave =
  84     VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, map);
  85 static int VGLMouseVisible = 0;
  86 static int VGLMouseFrozen = 0;
  87 static int VGLMouseShown = 0;
  88 static int VGLMouseXpos = 0;
  89 static int VGLMouseYpos = 0;
  90 static int VGLMouseButtons = 0;
  91
  92 void
  93 VGLMousePointerShow()
  94 {
  95   byte buf[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE];
  96   VGLBitmap buffer =
  97     VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, buf);
  98   byte crtcidx, crtcval, gdcidx, gdcval;
  99   int pos;
 100
 101   if (!VGLMouseVisible) {
 102     VGLMouseVisible = 1;
 103     crtcidx = inb(0x3c4);
 104     crtcval = inb(0x3c5);
 105     gdcidx = inb(0x3ce);
 106     gdcval = inb(0x3cf);
 107     __VGLBitmapCopy(VGLDisplay, VGLMouseXpos, VGLMouseYpos,
 108                   &VGLMouseSave, 0, 0, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
 109     bcopy(VGLMouseSave.Bitmap, buffer.Bitmap, MOUSE_IMG_SIZE*MOUSE_IMG_SIZE);
 110     for (pos = 0; pos <  MOUSE_IMG_SIZE*MOUSE_IMG_SIZE; pos++)
 111       buffer.Bitmap[pos]=(buffer.Bitmap[pos]&~(VGLMouseAndMask->Bitmap[pos])) |
 112                            VGLMouseOrMask->Bitmap[pos];
 113     __VGLBitmapCopy(&buffer, 0, 0, VGLDisplay,
 114                   VGLMouseXpos, VGLMouseYpos, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
 115     outb(0x3c4, crtcidx);
 116     outb(0x3c5, crtcval);
 117     outb(0x3ce, gdcidx);
 118     outb(0x3cf, gdcval);
 119   }
 120 }
 121
 122 void
 123 VGLMousePointerHide()
 124 {
 125   byte crtcidx, crtcval, gdcidx, gdcval;
 126
 127   if (VGLMouseVisible) {
 128     VGLMouseVisible = 0;
 129     crtcidx = inb(0x3c4);
 130     crtcval = inb(0x3c5);
 131     gdcidx = inb(0x3ce);
 132     gdcval = inb(0x3cf);
 133     __VGLBitmapCopy(&VGLMouseSave, 0, 0, VGLDisplay,
 134                   VGLMouseXpos, VGLMouseYpos, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
 135     outb(0x3c4, crtcidx);
 136     outb(0x3c5, crtcval);
 137     outb(0x3ce, gdcidx);
 138     outb(0x3cf, gdcval);
 139   }
 140 }
 141
 142 void
 143 VGLMouseMode(int mode)
 144 {
 145   if (mode == VGL_MOUSESHOW) {
 146     if (VGLMouseShown == VGL_MOUSEHIDE) {
 147       VGLMousePointerShow();
 148       VGLMouseShown = VGL_MOUSESHOW;
 149     }
 150   }
 151   else {
 152     if (VGLMouseShown == VGL_MOUSESHOW) {
 153       VGLMousePointerHide();
 154       VGLMouseShown = VGL_MOUSEHIDE;
 155     }
 156   }
 157 }
 158
 159 void
 160 VGLMouseAction(int dummy)
 161 {
 162   struct mouse_info mouseinfo;
 163
 164   if (VGLMouseFrozen) {
 165     VGLMouseFrozen++;
 166     return;
 167   }
 168   mouseinfo.operation = MOUSE_GETINFO;
 169   ioctl(0, CONS_MOUSECTL, &mouseinfo);
 170   if (VGLMouseShown == VGL_MOUSESHOW)
 171     VGLMousePointerHide();
 172   VGLMouseXpos = mouseinfo.u.data.x;
 173   VGLMouseYpos = mouseinfo.u.data.y;
 174   VGLMouseButtons = mouseinfo.u.data.buttons;
 175   if (VGLMouseShown == VGL_MOUSESHOW)
 176     VGLMousePointerShow();
 177 }
 178
 179 void
 180 VGLMouseSetImage(VGLBitmap *AndMask, VGLBitmap *OrMask)
 181 {
 182   if (VGLMouseShown == VGL_MOUSESHOW)
 183     VGLMousePointerHide();
 184   VGLMouseAndMask = AndMask;
 185   VGLMouseOrMask = OrMask;
 186   if (VGLMouseShown == VGL_MOUSESHOW)
 187     VGLMousePointerShow();
 188 }
 189
 190 void
 191 VGLMouseSetStdImage()
 192 {
 193   if (VGLMouseShown == VGL_MOUSESHOW)
 194     VGLMousePointerHide();
 195   VGLMouseAndMask = &VGLMouseStdAndMask;
 196   VGLMouseOrMask = &VGLMouseStdOrMask;
 197   if (VGLMouseShown == VGL_MOUSESHOW)
 198     VGLMousePointerShow();
 199 }
 200
 201 int
 202 VGLMouseInit(int mode)
 203 {
 204   struct mouse_info mouseinfo;
 205   int error;
 206
 207   VGLMouseSetStdImage();
 208   mouseinfo.operation = MOUSE_MODE;
 209   mouseinfo.u.mode.signal = SIGUSR2;
 210   if ((error = ioctl(0, CONS_MOUSECTL, &mouseinfo)))
 211     return error;
 212   signal(SIGUSR2, VGLMouseAction);
 213   mouseinfo.operation = MOUSE_GETINFO;
 214   ioctl(0, CONS_MOUSECTL, &mouseinfo);
 215   VGLMouseXpos = mouseinfo.u.data.x;
 216   VGLMouseYpos = mouseinfo.u.data.y;
 217   VGLMouseButtons = mouseinfo.u.data.buttons;
 218   VGLMouseMode(mode);
 219   return 0;
 220 }
 221
 222 int
 223 VGLMouseStatus(int *x, int *y, char *buttons)
 224 {
 225   signal(SIGUSR2, SIG_IGN);
 226   *x =  VGLMouseXpos;
 227   *y =  VGLMouseYpos;
 228   *buttons =  VGLMouseButtons;
 229   signal(SIGUSR2, VGLMouseAction);
 230   return VGLMouseShown;
 231 }
 232
 233 int
 234 VGLMouseFreeze(int x, int y, int width, int hight, byte color)
 235 {
 236   if (!VGLMouseFrozen) {
 237     VGLMouseFrozen = 1;
 238     if (width > 1 || hight > 1) {               /* bitmap */
 239       if (VGLMouseShown == 1) {
 240         int overlap;
 241
 242         if (x > VGLMouseXpos)
 243           overlap = (VGLMouseXpos + MOUSE_IMG_SIZE) - x;
 244         else
 245           overlap = (x + width) - VGLMouseXpos;
 246         if (overlap > 0) {
 247           if (y > VGLMouseYpos)
 248             overlap = (VGLMouseYpos + MOUSE_IMG_SIZE) - y;
 249           else
 250             overlap = (y + hight) - VGLMouseYpos;
 251           if (overlap > 0)
 252             VGLMousePointerHide();
 253         }
 254       }
 255     }
 256     else {                              /* bit */
 257       if (VGLMouseShown &&
 258           x >= VGLMouseXpos && x < VGLMouseXpos + MOUSE_IMG_SIZE &&
 259           y >= VGLMouseYpos && y < VGLMouseYpos + MOUSE_IMG_SIZE) {
 260         VGLMouseSave.Bitmap[(y-VGLMouseYpos)*MOUSE_IMG_SIZE+(x-VGLMouseXpos)] =
 261           (color);
 262         if (VGLMouseAndMask->Bitmap
 263           [(y-VGLMouseYpos)*MOUSE_IMG_SIZE+(x-VGLMouseXpos)]) {
 264           return 1;
 265         }
 266       }
 267     }
 268   }
 269   return 0;
 270 }
 271
 272 void
 273 VGLMouseUnFreeze()
 274 {
 275   if (VGLMouseFrozen > 1) {
 276     VGLMouseFrozen = 0;
 277     VGLMouseAction(0);
 278   }
 279   else {
 280     VGLMouseFrozen = 0;
 281     if (VGLMouseShown == VGL_MOUSESHOW && !VGLMouseVisible)
 282       VGLMousePointerShow();
 283   }
 284 }