c0ce6f7d91
complications in the previous methods. r346761 broke showing the mouse cursor after changing its state from off to on (including initially), since showing the cursor uses the state to decide whether to actually show and the state variable was not changed until after null showing. Moving the mouse or copying under the cursor fixed the problem. Fix this and similar problems for the on to off transition by changing the state variable before drawing the cursor. r346641 failed to turn off the mouse cursor on exit from vgl. It hid the cursor only temporarily for clearing. This doesn't change the state variable, so unhiding the cursor after clearing restored the cursor if its state was on. Fix this by changing its state to VGL_MOUSEHIDE using the application API for changing the state. Remove the VGLMouseVisible state variable and the extra states given by it. This was an optimization that was just an obfuscation in at least the previous version. Staticize VGLMouseAction(). Remove VGLMousePointerShow/Hide() except as internals in __VGLMouseMode(). __VGLMouseMouseMode() is the same as the application API VGLMouseMouseMode() except it returns the previous mode which callers need to know to restore it after hiding the cursor. Use the refactoring to make minor improvements in a simpler way than was possible: - in VGLMouseAction(), only hide and and unhide the mouse cursor if the mouse moved - in VGLClear(), only hide and and unhide the mouse cursor if the clearing method would otherwise clear the cursor.
337 lines
9.2 KiB
C
337 lines
9.2 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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static void VGLMouseAction(int dummy);
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#define BORDER 0xff /* default border -- light white in rgb 3:3:2 */
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#define INTERIOR 0xa0 /* default interior -- red in rgb 3:3:2 */
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#define X 0xff /* any nonzero in And mask means part of cursor */
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#define B BORDER
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#define I INTERIOR
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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,X,X,X,0,0,0,0,0,0,
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X,X,X,X,X,X,X,X,X,X,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,0,X,X,X,X,0,0,0,0,0,0,0,0,
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X,X,0,0,X,X,X,X,0,0,0,0,0,0,0,0,
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0,0,0,0,0,X,X,X,X,0,0,0,0,0,0,0,
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0,0,0,0,0,X,X,X,X,0,0,0,0,0,0,0,
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0,0,0,0,0,0,X,X,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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B,B,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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B,I,B,0,0,0,0,0,0,0,0,0,0,0,0,0,
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B,I,I,B,0,0,0,0,0,0,0,0,0,0,0,0,
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B,I,I,I,B,0,0,0,0,0,0,0,0,0,0,0,
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B,I,I,I,I,B,0,0,0,0,0,0,0,0,0,0,
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B,I,I,I,I,I,B,0,0,0,0,0,0,0,0,0,
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B,I,I,I,I,I,I,B,0,0,0,0,0,0,0,0,
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B,I,I,I,I,I,I,I,B,0,0,0,0,0,0,0,
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B,I,I,I,I,I,I,I,I,B,0,0,0,0,0,0,
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B,I,I,I,I,I,B,B,B,B,0,0,0,0,0,0,
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B,I,I,B,I,I,B,0,0,0,0,0,0,0,0,0,
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B,I,B,0,B,I,I,B,0,0,0,0,0,0,0,0,
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B,B,0,0,B,I,I,B,0,0,0,0,0,0,0,0,
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0,0,0,0,0,B,I,I,B,0,0,0,0,0,0,0,
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0,0,0,0,0,B,I,I,B,0,0,0,0,0,0,0,
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0,0,0,0,0,0,B,B,0,0,0,0,0,0,0,0,
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};
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#undef X
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#undef B
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#undef I
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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 int VGLMouseShown = VGL_MOUSEHIDE;
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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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int
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__VGLMouseMode(int mode)
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{
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int oldmode;
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INTOFF();
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oldmode = VGLMouseShown;
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if (mode == VGL_MOUSESHOW) {
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if (VGLMouseShown == VGL_MOUSEHIDE) {
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VGLMouseShown = VGL_MOUSESHOW;
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__VGLBitmapCopy(&VGLVDisplay, VGLMouseXpos, VGLMouseYpos, VGLDisplay,
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VGLMouseXpos, VGLMouseYpos,
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MOUSE_IMG_SIZE, -MOUSE_IMG_SIZE);
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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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VGLMouseShown = VGL_MOUSEHIDE;
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__VGLBitmapCopy(&VGLVDisplay, VGLMouseXpos, VGLMouseYpos, VGLDisplay,
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VGLMouseXpos, VGLMouseYpos,
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MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
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}
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}
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INTON();
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return oldmode;
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}
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void
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VGLMouseMode(int mode)
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{
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__VGLMouseMode(mode);
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}
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static void
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VGLMouseAction(int dummy)
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{
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struct mouse_info mouseinfo;
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int mousemode;
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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 (VGLMouseXpos != mouseinfo.u.data.x ||
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VGLMouseYpos != mouseinfo.u.data.y) {
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mousemode = __VGLMouseMode(VGL_MOUSEHIDE);
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VGLMouseXpos = mouseinfo.u.data.x;
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VGLMouseYpos = mouseinfo.u.data.y;
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__VGLMouseMode(mousemode);
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}
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VGLMouseButtons = mouseinfo.u.data.buttons;
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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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int mousemode;
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mousemode = __VGLMouseMode(VGL_MOUSEHIDE);
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VGLMouseAndMask = AndMask;
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if (VGLMouseOrMask != NULL) {
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free(VGLMouseOrMask->Bitmap);
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free(VGLMouseOrMask);
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}
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VGLMouseOrMask = VGLBitmapCreate(MEMBUF, OrMask->VXsize, OrMask->VYsize, 0);
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VGLBitmapAllocateBits(VGLMouseOrMask);
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VGLBitmapCvt(OrMask, VGLMouseOrMask);
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__VGLMouseMode(mousemode);
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}
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void
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VGLMouseSetStdImage()
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{
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VGLMouseSetImage(&VGLMouseStdAndMask, &VGLMouseStdOrMask);
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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 andmask, border, error, i, interior;
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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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andmask = 0x0f;
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border = 0x0f;
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interior = 0x04;
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break;
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case V_INFO_MM_VGAX:
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andmask = 0x3f;
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border = 0x3f;
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interior = 0x24;
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break;
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default:
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andmask = 0xff;
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border = BORDER;
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interior = INTERIOR;
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break;
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}
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if (VGLModeInfo.vi_mode == M_BG640x480)
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border = 0; /* XXX (palette makes 0x04 look like 0x0f) */
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if (getenv("VGLMOUSEBORDERCOLOR") != NULL)
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border = strtoul(getenv("VGLMOUSEBORDERCOLOR"), NULL, 0);
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if (getenv("VGLMOUSEINTERIORCOLOR") != NULL)
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interior = strtoul(getenv("VGLMOUSEINTERIORCOLOR"), NULL, 0);
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for (i = 0; i < MOUSE_IMG_SIZE*MOUSE_IMG_SIZE; i++)
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VGLMouseStdOrMask.Bitmap[i] = VGLMouseStdOrMask.Bitmap[i] == BORDER ?
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border : VGLMouseStdOrMask.Bitmap[i] == INTERIOR ? interior : 0;
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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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void
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VGLMouseFreeze(void)
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{
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INTOFF();
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}
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int
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VGLMouseFreezeXY(int x, int y)
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{
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INTOFF();
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if (VGLMouseShown != VGL_MOUSESHOW)
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return 0;
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if (x >= VGLMouseXpos && x < VGLMouseXpos + MOUSE_IMG_SIZE &&
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y >= VGLMouseYpos && y < VGLMouseYpos + MOUSE_IMG_SIZE &&
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VGLMouseAndMask->Bitmap[(y-VGLMouseYpos)*MOUSE_IMG_SIZE+(x-VGLMouseXpos)])
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return 1;
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return 0;
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}
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int
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VGLMouseOverlap(int x, int y, int width, int hight)
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{
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int overlap;
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if (VGLMouseShown != VGL_MOUSESHOW)
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return 0;
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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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return 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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return overlap > 0;
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}
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void
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VGLMouseMerge(int x, int y, int width, byte *line)
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{
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int pos, x1, xend, xstart;
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xstart = x;
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if (xstart < VGLMouseXpos)
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xstart = VGLMouseXpos;
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xend = x + width;
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if (xend > VGLMouseXpos + MOUSE_IMG_SIZE)
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xend = VGLMouseXpos + MOUSE_IMG_SIZE;
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for (x1 = xstart; x1 < xend; x1++) {
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pos = (y - VGLMouseYpos) * MOUSE_IMG_SIZE + x1 - VGLMouseXpos;
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if (VGLMouseAndMask->Bitmap[pos])
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bcopy(&VGLMouseOrMask->Bitmap[pos * VGLDisplay->PixelBytes],
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&line[(x1 - x) * VGLDisplay->PixelBytes], VGLDisplay->PixelBytes);
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}
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}
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void
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VGLMouseUnFreeze()
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{
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INTON();
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}
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