362 lines
10 KiB
C
362 lines
10 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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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 without 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/signal.h>
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#include <sys/consio.h>
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#include <sys/fbio.h>
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#include "vgl.h"
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#define X 0xff
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static byte StdAndMask[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE] = {
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X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,
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X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,
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X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,
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X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,
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X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
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X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,
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X,X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,
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X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
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0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,0,
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0,0,0,X,X,X,X,X,0,0,0,0,0,0,0,0,
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0,0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,
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0,0,0,0,X,X,X,X,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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};
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static byte StdOrMask[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE] = {
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,
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0,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,
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0,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,
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0,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
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0,X,X,0,X,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,X,X,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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};
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#undef X
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static VGLBitmap VGLMouseStdAndMask =
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VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, StdAndMask);
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static VGLBitmap VGLMouseStdOrMask =
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VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, StdOrMask);
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static VGLBitmap *VGLMouseAndMask, *VGLMouseOrMask;
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static byte map[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE*4];
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static VGLBitmap VGLMouseSave =
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VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, map);
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static int VGLMouseVisible = 0;
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static int VGLMouseShown = 0;
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static int VGLMouseXpos = 0;
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static int VGLMouseYpos = 0;
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static int VGLMouseButtons = 0;
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static volatile sig_atomic_t VGLMintpending;
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static volatile sig_atomic_t VGLMsuppressint;
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#define INTOFF() (VGLMsuppressint++)
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#define INTON() do { \
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if (--VGLMsuppressint == 0 && VGLMintpending) \
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VGLMouseAction(0); \
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} while (0)
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void
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VGLMousePointerShow()
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{
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byte buf[MOUSE_IMG_SIZE*MOUSE_IMG_SIZE*4];
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VGLBitmap buffer =
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VGLBITMAP_INITIALIZER(MEMBUF, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE, buf);
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byte crtcidx, crtcval, gdcidx, gdcval;
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int i, pos, pos1;
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if (!VGLMouseVisible) {
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INTOFF();
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VGLMouseVisible = 1;
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if (VGLModeInfo.vi_mem_model != V_INFO_MM_DIRECT) {
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crtcidx = inb(0x3c4);
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crtcval = inb(0x3c5);
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gdcidx = inb(0x3ce);
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gdcval = inb(0x3cf);
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}
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__VGLBitmapCopy(VGLDisplay, VGLMouseXpos, VGLMouseYpos,
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&VGLMouseSave, 0, 0, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
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bcopy(VGLMouseSave.Bitmap, buffer.Bitmap,
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MOUSE_IMG_SIZE*MOUSE_IMG_SIZE*VGLDisplay->PixelBytes);
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for (pos = 0; pos < MOUSE_IMG_SIZE*MOUSE_IMG_SIZE; pos++)
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for (i = 0; i < VGLDisplay->PixelBytes; i++) {
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pos1 = pos * VGLDisplay->PixelBytes + i;
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buffer.Bitmap[pos1] = (buffer.Bitmap[pos1] &
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~VGLMouseAndMask->Bitmap[pos]) |
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VGLMouseOrMask->Bitmap[pos];
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}
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__VGLBitmapCopy(&buffer, 0, 0, VGLDisplay,
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VGLMouseXpos, VGLMouseYpos, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
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if (VGLModeInfo.vi_mem_model != V_INFO_MM_DIRECT) {
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outb(0x3c4, crtcidx);
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outb(0x3c5, crtcval);
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outb(0x3ce, gdcidx);
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outb(0x3cf, gdcval);
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}
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INTON();
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}
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}
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void
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VGLMousePointerHide()
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{
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byte crtcidx, crtcval, gdcidx, gdcval;
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if (VGLMouseVisible) {
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INTOFF();
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VGLMouseVisible = 0;
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if (VGLModeInfo.vi_mem_model != V_INFO_MM_DIRECT) {
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crtcidx = inb(0x3c4);
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crtcval = inb(0x3c5);
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gdcidx = inb(0x3ce);
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gdcval = inb(0x3cf);
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}
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__VGLBitmapCopy(&VGLMouseSave, 0, 0, VGLDisplay,
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VGLMouseXpos, VGLMouseYpos, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
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if (VGLModeInfo.vi_mem_model != V_INFO_MM_DIRECT) {
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outb(0x3c4, crtcidx);
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outb(0x3c5, crtcval);
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outb(0x3ce, gdcidx);
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outb(0x3cf, gdcval);
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}
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INTON();
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}
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}
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void
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VGLMouseMode(int mode)
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{
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if (mode == VGL_MOUSESHOW) {
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if (VGLMouseShown == VGL_MOUSEHIDE) {
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VGLMousePointerShow();
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VGLMouseShown = VGL_MOUSESHOW;
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}
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}
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else {
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if (VGLMouseShown == VGL_MOUSESHOW) {
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VGLMousePointerHide();
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VGLMouseShown = VGL_MOUSEHIDE;
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}
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}
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}
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void
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VGLMouseAction(int dummy)
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{
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struct mouse_info mouseinfo;
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if (VGLMsuppressint) {
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VGLMintpending = 1;
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return;
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}
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again:
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INTOFF();
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VGLMintpending = 0;
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mouseinfo.operation = MOUSE_GETINFO;
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ioctl(0, CONS_MOUSECTL, &mouseinfo);
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if (VGLMouseShown == VGL_MOUSESHOW)
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VGLMousePointerHide();
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VGLMouseXpos = mouseinfo.u.data.x;
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VGLMouseYpos = mouseinfo.u.data.y;
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VGLMouseButtons = mouseinfo.u.data.buttons;
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if (VGLMouseShown == VGL_MOUSESHOW)
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VGLMousePointerShow();
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/*
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* Loop to handle any new (suppressed) signals. This is INTON() without
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* recursion. !SA_RESTART prevents recursion in signal handling. So the
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* maximum recursion is 2 levels.
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*/
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VGLMsuppressint = 0;
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if (VGLMintpending)
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goto again;
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}
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void
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VGLMouseSetImage(VGLBitmap *AndMask, VGLBitmap *OrMask)
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{
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if (VGLMouseShown == VGL_MOUSESHOW)
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VGLMousePointerHide();
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VGLMouseAndMask = AndMask;
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VGLMouseOrMask = OrMask;
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if (VGLMouseShown == VGL_MOUSESHOW)
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VGLMousePointerShow();
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}
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void
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VGLMouseSetStdImage()
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{
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if (VGLMouseShown == VGL_MOUSESHOW)
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VGLMousePointerHide();
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VGLMouseAndMask = &VGLMouseStdAndMask;
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VGLMouseOrMask = &VGLMouseStdOrMask;
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if (VGLMouseShown == VGL_MOUSESHOW)
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VGLMousePointerShow();
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}
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int
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VGLMouseInit(int mode)
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{
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struct mouse_info mouseinfo;
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int error, i, mask;
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switch (VGLModeInfo.vi_mem_model) {
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case V_INFO_MM_PACKED:
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case V_INFO_MM_PLANAR:
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mask = 0x0f;
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break;
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case V_INFO_MM_VGAX:
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mask = 0x3f;
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break;
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default:
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mask = 0xff;
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break;
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}
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for (i = 0; i < 256; i++)
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VGLMouseStdOrMask.Bitmap[i] &= mask;
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VGLMouseSetStdImage();
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mouseinfo.operation = MOUSE_MODE;
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mouseinfo.u.mode.signal = SIGUSR2;
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if ((error = ioctl(0, CONS_MOUSECTL, &mouseinfo)))
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return error;
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signal(SIGUSR2, VGLMouseAction);
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mouseinfo.operation = MOUSE_GETINFO;
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ioctl(0, CONS_MOUSECTL, &mouseinfo);
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VGLMouseXpos = mouseinfo.u.data.x;
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VGLMouseYpos = mouseinfo.u.data.y;
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VGLMouseButtons = mouseinfo.u.data.buttons;
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VGLMouseMode(mode);
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return 0;
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}
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void
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VGLMouseRestore(void)
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{
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struct mouse_info mouseinfo;
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INTOFF();
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mouseinfo.operation = MOUSE_GETINFO;
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if (ioctl(0, CONS_MOUSECTL, &mouseinfo) == 0) {
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mouseinfo.operation = MOUSE_MOVEABS;
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mouseinfo.u.data.x = VGLMouseXpos;
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mouseinfo.u.data.y = VGLMouseYpos;
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ioctl(0, CONS_MOUSECTL, &mouseinfo);
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}
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INTON();
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}
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int
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VGLMouseStatus(int *x, int *y, char *buttons)
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{
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INTOFF();
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*x = VGLMouseXpos;
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*y = VGLMouseYpos;
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*buttons = VGLMouseButtons;
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INTON();
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return VGLMouseShown;
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}
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int
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VGLMouseFreeze(int x, int y, int width, int hight, u_long color)
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{
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int i, xstride, ystride;
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INTOFF();
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if (width > 1 || hight > 1 || (color & 0xc0000000) == 0) { /* bitmap */
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if (VGLMouseShown == 1) {
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int overlap;
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if (x > VGLMouseXpos)
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overlap = (VGLMouseXpos + MOUSE_IMG_SIZE) - x;
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else
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overlap = (x + width) - VGLMouseXpos;
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if (overlap > 0) {
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if (y > VGLMouseYpos)
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overlap = (VGLMouseYpos + MOUSE_IMG_SIZE) - y;
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else
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overlap = (y + hight) - VGLMouseYpos;
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if (overlap > 0)
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VGLMousePointerHide();
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}
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}
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}
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else { /* bit */
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if (VGLMouseShown &&
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x >= VGLMouseXpos && x < VGLMouseXpos + MOUSE_IMG_SIZE &&
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y >= VGLMouseYpos && y < VGLMouseYpos + MOUSE_IMG_SIZE) {
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xstride = VGLDisplay->PixelBytes;
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ystride = MOUSE_IMG_SIZE * xstride;
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if (color & 0x40000000) { /* Get */
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color = 0;
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for (i = xstride - 1; i >= 0; i--)
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color = (color << 8) |
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VGLMouseSave.Bitmap[(y-VGLMouseYpos)*ystride+
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(x-VGLMouseXpos)*xstride+i];
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return 0x40000000 | (color & 0xffffff);
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} else { /* Set */
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color &= 0xffffff; /* discard flag and other garbage */
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for (i = 0; i < xstride; i++, color >>= 8)
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VGLMouseSave.Bitmap[(y-VGLMouseYpos)*ystride+
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(x-VGLMouseXpos)*xstride+i] = color;
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if (VGLMouseAndMask->Bitmap
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[(y-VGLMouseYpos)*MOUSE_IMG_SIZE+(x-VGLMouseXpos)]) {
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return 1;
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}
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}
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}
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}
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return 0;
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}
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void
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VGLMouseUnFreeze()
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{
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if (VGLMouseShown == VGL_MOUSESHOW && !VGLMouseVisible && !VGLMintpending)
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VGLMousePointerShow();
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while (VGLMsuppressint)
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INTON();
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}
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