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 without 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
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #include <stdio.h>
  33 #include <sys/types.h>
  34 #include <sys/ioctl.h>
  35 #include <sys/signal.h>
  36 #include <sys/consio.h>
  37 #include <sys/fbio.h>
  38 #include "vgl.h"
  39
  40 #define X 0xff
  41 static byte StdAndMask[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE] = {
  42         X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  43         X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,
  44         X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,
  45         X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,
  46         X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,
  47         X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
  48         X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,
  49         X,X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,
  50         X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
  51         0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,0,
  52         0,0,0,X,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,X,X,X,X,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         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  58 };
  59 static byte StdOrMask[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE] = {
  60         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  61         0,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  62         0,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,
  63         0,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,
  64         0,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,
  65         0,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,
  66         0,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
  67         0,X,X,0,X,0,0,0,0,0,0,0,0,0,0,0,
  68         0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,0,
  69         0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,0,
  70         0,0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,
  71         0,0,0,0,0,X,X,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         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  76 };
  77 #undef X
  78 static VGLBitmap VGLMouseStdAndMask =
  79     VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, StdAndMask);
  80 static VGLBitmap VGLMouseStdOrMask =
  81     VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, StdOrMask);
  82 static VGLBitmap *VGLMouseAndMask, *VGLMouseOrMask;
  83 static byte map[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE];
  84 static VGLBitmap VGLMouseSave =
  85     VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, map);
  86 static int VGLMouseVisible = 0;
  87 static int VGLMouseFrozen = 0;
  88 static int VGLMouseShown = 0;
  89 static int VGLMouseXpos = 0;
  90 static int VGLMouseYpos = 0;
  91 static int VGLMouseButtons = 0;
  92
  93 void
  94 VGLMousePointerShow()
  95 {
  96   byte buf[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE];
  97   VGLBitmap buffer =
  98     VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, buf);
  99   byte crtcidx, crtcval, gdcidx, gdcval;
 100   int pos;
 101
 102   if (!VGLMouseVisible) {
 103     VGLMouseVisible = 1;
 104     crtcidx = inb(0x3c4);
 105     crtcval = inb(0x3c5);
 106     gdcidx = inb(0x3ce);
 107     gdcval = inb(0x3cf);
 108     __VGLBitmapCopy(VGLDisplay, VGLMouseXpos, VGLMouseYpos,
 109                   &VGLMouseSave, 0, 0, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
 110     bcopy(VGLMouseSave.Bitmap, buffer.Bitmap, MOUSE_IMG_SIZE*MOUSE_IMG_SIZE);
 111     for (pos = 0; pos <  MOUSE_IMG_SIZE*MOUSE_IMG_SIZE; pos++)
 112       buffer.Bitmap[pos]=(buffer.Bitmap[pos]&~(VGLMouseAndMask->Bitmap[pos])) |
 113                            VGLMouseOrMask->Bitmap[pos];
 114     __VGLBitmapCopy(&buffer, 0, 0, VGLDisplay,
 115                   VGLMouseXpos, VGLMouseYpos, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
 116     outb(0x3c4, crtcidx);
 117     outb(0x3c5, crtcval);
 118     outb(0x3ce, gdcidx);
 119     outb(0x3cf, gdcval);
 120   }
 121 }
 122
 123 void
 124 VGLMousePointerHide()
 125 {
 126   byte crtcidx, crtcval, gdcidx, gdcval;
 127
 128   if (VGLMouseVisible) {
 129     VGLMouseVisible = 0;
 130     crtcidx = inb(0x3c4);
 131     crtcval = inb(0x3c5);
 132     gdcidx = inb(0x3ce);
 133     gdcval = inb(0x3cf);
 134     __VGLBitmapCopy(&VGLMouseSave, 0, 0, VGLDisplay,
 135                   VGLMouseXpos, VGLMouseYpos, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
 136     outb(0x3c4, crtcidx);
 137     outb(0x3c5, crtcval);
 138     outb(0x3ce, gdcidx);
 139     outb(0x3cf, gdcval);
 140   }
 141 }
 142
 143 void
 144 VGLMouseMode(int mode)
 145 {
 146   if (mode == VGL_MOUSESHOW) {
 147     if (VGLMouseShown == VGL_MOUSEHIDE) {
 148       VGLMousePointerShow();
 149       VGLMouseShown = VGL_MOUSESHOW;
 150     }
 151   }
 152   else {
 153     if (VGLMouseShown == VGL_MOUSESHOW) {
 154       VGLMousePointerHide();
 155       VGLMouseShown = VGL_MOUSEHIDE;
 156     }
 157   }
 158 }
 159
 160 void
 161 VGLMouseAction(int dummy)
 162 {
 163   struct mouse_info mouseinfo;
 164
 165   if (VGLMouseFrozen) {
 166     VGLMouseFrozen++;
 167     return;
 168   }
 169   mouseinfo.operation = MOUSE_GETINFO;
 170   ioctl(0, CONS_MOUSECTL, &mouseinfo);
 171   if (VGLMouseShown == VGL_MOUSESHOW)
 172     VGLMousePointerHide();
 173   VGLMouseXpos = mouseinfo.u.data.x;
 174   VGLMouseYpos = mouseinfo.u.data.y;
 175   VGLMouseButtons = mouseinfo.u.data.buttons;
 176   if (VGLMouseShown == VGL_MOUSESHOW)
 177     VGLMousePointerShow();
 178 }
 179
 180 void
 181 VGLMouseSetImage(VGLBitmap *AndMask, VGLBitmap *OrMask)
 182 {
 183   if (VGLMouseShown == VGL_MOUSESHOW)
 184     VGLMousePointerHide();
 185   VGLMouseAndMask = AndMask;
 186   VGLMouseOrMask = OrMask;
 187   if (VGLMouseShown == VGL_MOUSESHOW)
 188     VGLMousePointerShow();
 189 }
 190
 191 void
 192 VGLMouseSetStdImage()
 193 {
 194   if (VGLMouseShown == VGL_MOUSESHOW)
 195     VGLMousePointerHide();
 196   VGLMouseAndMask = &VGLMouseStdAndMask;
 197   VGLMouseOrMask = &VGLMouseStdOrMask;
 198   if (VGLMouseShown == VGL_MOUSESHOW)
 199     VGLMousePointerShow();
 200 }
 201
 202 int
 203 VGLMouseInit(int mode)
 204 {
 205   struct mouse_info mouseinfo;
 206   int error;
 207
 208   VGLMouseSetStdImage();
 209   mouseinfo.operation = MOUSE_MODE;
 210   mouseinfo.u.mode.signal = SIGUSR2;
 211   if ((error = ioctl(0, CONS_MOUSECTL, &mouseinfo)))
 212     return error;
 213   signal(SIGUSR2, VGLMouseAction);
 214   mouseinfo.operation = MOUSE_GETINFO;
 215   ioctl(0, CONS_MOUSECTL, &mouseinfo);
 216   VGLMouseXpos = mouseinfo.u.data.x;
 217   VGLMouseYpos = mouseinfo.u.data.y;
 218   VGLMouseButtons = mouseinfo.u.data.buttons;
 219   VGLMouseMode(mode);
 220   return 0;
 221 }
 222
 223 int
 224 VGLMouseStatus(int *x, int *y, char *buttons)
 225 {
 226   signal(SIGUSR2, SIG_IGN);
 227   *x =  VGLMouseXpos;
 228   *y =  VGLMouseYpos;
 229   *buttons =  VGLMouseButtons;
 230   signal(SIGUSR2, VGLMouseAction);
 231   return VGLMouseShown;
 232 }
 233
 234 int
 235 VGLMouseFreeze(int x, int y, int width, int hight, byte color)
 236 {
 237   if (!VGLMouseFrozen) {
 238     VGLMouseFrozen = 1;
 239     if (width > 1 || hight > 1) {               /* bitmap */
 240       if (VGLMouseShown == 1) {
 241         int overlap;
 242
 243         if (x > VGLMouseXpos)
 244           overlap = (VGLMouseXpos + MOUSE_IMG_SIZE) - x;
 245         else
 246           overlap = (x + width) - VGLMouseXpos;
 247         if (overlap > 0) {
 248           if (y > VGLMouseYpos)
 249             overlap = (VGLMouseYpos + MOUSE_IMG_SIZE) - y;
 250           else
 251             overlap = (y + hight) - VGLMouseYpos;
 252           if (overlap > 0)
 253             VGLMousePointerHide();
 254         }
 255       }
 256     }
 257     else {                              /* bit */
 258       if (VGLMouseShown &&
 259           x >= VGLMouseXpos && x < VGLMouseXpos + MOUSE_IMG_SIZE &&
 260           y >= VGLMouseYpos && y < VGLMouseYpos + MOUSE_IMG_SIZE) {
 261         VGLMouseSave.Bitmap[(y-VGLMouseYpos)*MOUSE_IMG_SIZE+(x-VGLMouseXpos)] =
 262           (color);
 263         if (VGLMouseAndMask->Bitmap
 264           [(y-VGLMouseYpos)*MOUSE_IMG_SIZE+(x-VGLMouseXpos)]) {
 265           return 1;
 266         }
 267       }
 268     }
 269   }
 270   return 0;
 271 }
 272
 273 void
 274 VGLMouseUnFreeze()
 275 {
 276   if (VGLMouseFrozen > 1) {
 277     VGLMouseFrozen = 0;
 278     VGLMouseAction(0);
 279   }
 280   else {
 281     VGLMouseFrozen = 0;
 282     if (VGLMouseShown == VGL_MOUSESHOW && !VGLMouseVisible)
 283       VGLMousePointerShow();
 284   }
 285 }