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freebsd-skq/lib/libvgl/mouse.c
bde 5ed15f8bbd Support all reasonable cursor sizes. Reduce the size of the standard 
cursor from 16x16 (with 6 columns unused) to 10x16 and rename it to
the "small" cursor.  Add a "large" 19x32 cursor and use it for screen
widths larger than 800 pixels.  Use libvgl's too-small indentation for
the large data declarations.

MOUSE_IMG_SIZE = 16 is still part of the API.  If an application supplies
invalid bitmaps for the cursor, then the results may be different from
before.
2019-04-29 16:26:29 +00:00

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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("$FreeBSD$");
#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"
static void VGLMouseAction(int dummy);
#define BORDER 0xff /* default border -- light white in rgb 3:3:2 */
#define INTERIOR 0xa0 /* default interior -- red in rgb 3:3:2 */
#define LARGE_MOUSE_IMG_XSIZE 19
#define LARGE_MOUSE_IMG_YSIZE 32
#define SMALL_MOUSE_IMG_XSIZE 10
#define SMALL_MOUSE_IMG_YSIZE 16
#define X 0xff /* any nonzero in And mask means part of cursor */
#define B BORDER
#define I INTERIOR
static byte LargeAndMask[] = {
X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,0,0,
X,X,X,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,X,X,X,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,X,X,X,X,X,X,0,0,0,0,0,0,
X,X,X,X,X,X,X,X,X,X,X,X,X,X,0,0,0,0,0,
X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,0,0,0,0,
X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,0,0,0,
X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,0,0,
X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,0,
X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,
X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,
X,X,X,X,X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,
X,X,X,X,X,X,X,X,X,X,X,X,0,0,0,0,0,0,0,
X,X,X,X,X,X,0,X,X,X,X,X,X,0,0,0,0,0,0,
X,X,X,X,X,0,0,X,X,X,X,X,X,0,0,0,0,0,0,
X,X,X,X,0,0,0,0,X,X,X,X,X,X,0,0,0,0,0,
X,X,X,0,0,0,0,0,X,X,X,X,X,X,0,0,0,0,0,
X,X,0,0,0,0,0,0,0,X,X,X,X,X,X,0,0,0,0,
0,0,0,0,0,0,0,0,0,X,X,X,X,X,X,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,X,X,X,X,X,X,0,0,0,
0,0,0,0,0,0,0,0,0,0,X,X,X,X,X,X,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,X,X,X,X,X,X,0,0,
0,0,0,0,0,0,0,0,0,0,0,X,X,X,X,X,X,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,X,X,X,X,0,0,0,
};
static byte LargeOrMask[] = {
B,B,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
B,I,B,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
B,I,I,B,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
B,I,I,I,B,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
B,I,I,I,I,B,0,0,0,0,0,0,0,0,0,0,0,0,0,
B,I,I,I,I,I,B,0,0,0,0,0,0,0,0,0,0,0,0,
B,I,I,I,I,I,I,B,0,0,0,0,0,0,0,0,0,0,0,
B,I,I,I,I,I,I,I,B,0,0,0,0,0,0,0,0,0,0,
B,I,I,I,I,I,I,I,I,B,0,0,0,0,0,0,0,0,0,
B,I,I,I,I,I,I,I,I,I,B,0,0,0,0,0,0,0,0,
B,I,I,I,I,I,I,I,I,I,I,B,0,0,0,0,0,0,0,
B,I,I,I,I,I,I,I,I,I,I,I,B,0,0,0,0,0,0,
B,I,I,I,I,I,I,I,I,I,I,I,I,B,0,0,0,0,0,
B,I,I,I,I,I,I,I,I,I,I,I,I,I,B,0,0,0,0,
B,I,I,I,I,I,I,I,I,I,I,I,I,I,I,B,0,0,0,
B,I,I,I,I,I,I,I,I,I,I,I,I,I,I,I,B,0,0,
B,I,I,I,I,I,I,I,I,I,I,I,I,I,I,I,I,B,0,
B,I,I,I,I,I,I,I,I,I,I,I,I,I,I,I,I,I,B,
B,I,I,I,I,I,I,I,I,I,I,B,B,B,B,B,B,B,B,
B,I,I,I,I,I,I,I,I,I,I,B,0,0,0,0,0,0,0,
B,I,I,I,I,I,B,I,I,I,I,B,0,0,0,0,0,0,0,
B,I,I,I,I,B,0,B,I,I,I,I,B,0,0,0,0,0,0,
B,I,I,I,B,0,0,B,I,I,I,I,B,0,0,0,0,0,0,
B,I,I,B,0,0,0,0,B,I,I,I,I,B,0,0,0,0,0,
B,I,B,0,0,0,0,0,B,I,I,I,I,B,0,0,0,0,0,
B,B,0,0,0,0,0,0,0,B,I,I,I,I,B,0,0,0,0,
0,0,0,0,0,0,0,0,0,B,I,I,I,I,B,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,B,I,I,I,I,B,0,0,0,
0,0,0,0,0,0,0,0,0,0,B,I,I,I,I,B,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,B,I,I,I,I,B,0,0,
0,0,0,0,0,0,0,0,0,0,0,B,I,I,I,I,B,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,B,B,B,B,0,0,0,
};
static byte SmallAndMask[] = {
X,X,0,0,0,0,0,0,0,0,
X,X,X,0,0,0,0,0,0,0,
X,X,X,X,0,0,0,0,0,0,
X,X,X,X,X,0,0,0,0,0,
X,X,X,X,X,X,0,0,0,0,
X,X,X,X,X,X,X,0,0,0,
X,X,X,X,X,X,X,X,0,0,
X,X,X,X,X,X,X,X,X,0,
X,X,X,X,X,X,X,X,X,X,
X,X,X,X,X,X,X,X,X,X,
X,X,X,X,X,X,X,0,0,0,
X,X,X,0,X,X,X,X,0,0,
X,X,0,0,X,X,X,X,0,0,
0,0,0,0,0,X,X,X,X,0,
0,0,0,0,0,X,X,X,X,0,
0,0,0,0,0,0,X,X,0,0,
};
static byte SmallOrMask[] = {
B,B,0,0,0,0,0,0,0,0,
B,I,B,0,0,0,0,0,0,0,
B,I,I,B,0,0,0,0,0,0,
B,I,I,I,B,0,0,0,0,0,
B,I,I,I,I,B,0,0,0,0,
B,I,I,I,I,I,B,0,0,0,
B,I,I,I,I,I,I,B,0,0,
B,I,I,I,I,I,I,I,B,0,
B,I,I,I,I,I,I,I,I,B,
B,I,I,I,I,I,B,B,B,B,
B,I,I,B,I,I,B,0,0,0,
B,I,B,0,B,I,I,B,0,0,
B,B,0,0,B,I,I,B,0,0,
0,0,0,0,0,B,I,I,B,0,
0,0,0,0,0,B,I,I,B,0,
0,0,0,0,0,0,B,B,0,0,
};
#undef X
#undef B
#undef I
static VGLBitmap VGLMouseLargeAndMask =
VGLBITMAP_INITIALIZER(MEMBUF, LARGE_MOUSE_IMG_XSIZE, LARGE_MOUSE_IMG_YSIZE,
LargeAndMask);
static VGLBitmap VGLMouseLargeOrMask =
VGLBITMAP_INITIALIZER(MEMBUF, LARGE_MOUSE_IMG_XSIZE, LARGE_MOUSE_IMG_YSIZE,
LargeOrMask);
static VGLBitmap VGLMouseSmallAndMask =
VGLBITMAP_INITIALIZER(MEMBUF, SMALL_MOUSE_IMG_XSIZE, SMALL_MOUSE_IMG_YSIZE,
SmallAndMask);
static VGLBitmap VGLMouseSmallOrMask =
VGLBITMAP_INITIALIZER(MEMBUF, SMALL_MOUSE_IMG_XSIZE, SMALL_MOUSE_IMG_YSIZE,
SmallOrMask);
static VGLBitmap *VGLMouseAndMask, *VGLMouseOrMask;
static int VGLMouseShown = VGL_MOUSEHIDE;
static int VGLMouseXpos = 0;
static int VGLMouseYpos = 0;
static int VGLMouseButtons = 0;
static volatile sig_atomic_t VGLMintpending;
static volatile sig_atomic_t VGLMsuppressint;
#define INTOFF() (VGLMsuppressint++)
#define INTON() do { \
if (--VGLMsuppressint == 0 && VGLMintpending) \
VGLMouseAction(0); \
} while (0)
int
__VGLMouseMode(int mode)
{
int oldmode;
INTOFF();
oldmode = VGLMouseShown;
if (mode == VGL_MOUSESHOW) {
if (VGLMouseShown == VGL_MOUSEHIDE) {
VGLMouseShown = VGL_MOUSESHOW;
__VGLBitmapCopy(&VGLVDisplay, VGLMouseXpos, VGLMouseYpos,
VGLDisplay, VGLMouseXpos, VGLMouseYpos,
VGLMouseAndMask->VXsize, -VGLMouseAndMask->VYsize);
}
}
else {
if (VGLMouseShown == VGL_MOUSESHOW) {
VGLMouseShown = VGL_MOUSEHIDE;
__VGLBitmapCopy(&VGLVDisplay, VGLMouseXpos, VGLMouseYpos,
VGLDisplay, VGLMouseXpos, VGLMouseYpos,
VGLMouseAndMask->VXsize, VGLMouseAndMask->VYsize);
}
}
INTON();
return oldmode;
}
void
VGLMouseMode(int mode)
{
__VGLMouseMode(mode);
}
static void
VGLMouseAction(int dummy)
{
struct mouse_info mouseinfo;
int mousemode;
if (VGLMsuppressint) {
VGLMintpending = 1;
return;
}
again:
INTOFF();
VGLMintpending = 0;
mouseinfo.operation = MOUSE_GETINFO;
ioctl(0, CONS_MOUSECTL, &mouseinfo);
if (VGLMouseXpos != mouseinfo.u.data.x ||
VGLMouseYpos != mouseinfo.u.data.y) {
mousemode = __VGLMouseMode(VGL_MOUSEHIDE);
VGLMouseXpos = mouseinfo.u.data.x;
VGLMouseYpos = mouseinfo.u.data.y;
__VGLMouseMode(mousemode);
}
VGLMouseButtons = mouseinfo.u.data.buttons;
/*
* Loop to handle any new (suppressed) signals. This is INTON() without
* recursion. !SA_RESTART prevents recursion in signal handling. So the
* maximum recursion is 2 levels.
*/
VGLMsuppressint = 0;
if (VGLMintpending)
goto again;
}
void
VGLMouseSetImage(VGLBitmap *AndMask, VGLBitmap *OrMask)
{
int mousemode;
mousemode = __VGLMouseMode(VGL_MOUSEHIDE);
VGLMouseAndMask = AndMask;
if (VGLMouseOrMask != NULL) {
free(VGLMouseOrMask->Bitmap);
free(VGLMouseOrMask);
}
VGLMouseOrMask = VGLBitmapCreate(MEMBUF, OrMask->VXsize, OrMask->VYsize, 0);
VGLBitmapAllocateBits(VGLMouseOrMask);
VGLBitmapCvt(OrMask, VGLMouseOrMask);
__VGLMouseMode(mousemode);
}
void
VGLMouseSetStdImage()
{
if (VGLDisplay->VXsize > 800)
VGLMouseSetImage(&VGLMouseLargeAndMask, &VGLMouseLargeOrMask);
else
VGLMouseSetImage(&VGLMouseSmallAndMask, &VGLMouseSmallOrMask);
}
int
VGLMouseInit(int mode)
{
struct mouse_info mouseinfo;
VGLBitmap *ormask;
int andmask, border, error, i, interior;
switch (VGLModeInfo.vi_mem_model) {
case V_INFO_MM_PACKED:
case V_INFO_MM_PLANAR:
andmask = 0x0f;
border = 0x0f;
interior = 0x04;
break;
case V_INFO_MM_VGAX:
andmask = 0x3f;
border = 0x3f;
interior = 0x24;
break;
default:
andmask = 0xff;
border = BORDER;
interior = INTERIOR;
break;
}
if (VGLModeInfo.vi_mode == M_BG640x480)
border = 0; /* XXX (palette makes 0x04 look like 0x0f) */
if (getenv("VGLMOUSEBORDERCOLOR") != NULL)
border = strtoul(getenv("VGLMOUSEBORDERCOLOR"), NULL, 0);
if (getenv("VGLMOUSEINTERIORCOLOR") != NULL)
interior = strtoul(getenv("VGLMOUSEINTERIORCOLOR"), NULL, 0);
ormask = &VGLMouseLargeOrMask;
for (i = 0; i < ormask->VXsize * ormask->VYsize; i++)
ormask->Bitmap[i] = ormask->Bitmap[i] == BORDER ? border :
ormask->Bitmap[i] == INTERIOR ? interior : 0;
ormask = &VGLMouseSmallOrMask;
for (i = 0; i < ormask->VXsize * ormask->VYsize; i++)
ormask->Bitmap[i] = ormask->Bitmap[i] == BORDER ? border :
ormask->Bitmap[i] == INTERIOR ? interior : 0;
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;
}
void
VGLMouseRestore(void)
{
struct mouse_info mouseinfo;
INTOFF();
mouseinfo.operation = MOUSE_GETINFO;
if (ioctl(0, CONS_MOUSECTL, &mouseinfo) == 0) {
mouseinfo.operation = MOUSE_MOVEABS;
mouseinfo.u.data.x = VGLMouseXpos;
mouseinfo.u.data.y = VGLMouseYpos;
ioctl(0, CONS_MOUSECTL, &mouseinfo);
}
INTON();
}
int
VGLMouseStatus(int *x, int *y, char *buttons)
{
INTOFF();
*x = VGLMouseXpos;
*y = VGLMouseYpos;
*buttons = VGLMouseButtons;
INTON();
return VGLMouseShown;
}
void
VGLMouseFreeze(void)
{
INTOFF();
}
int
VGLMouseFreezeXY(int x, int y)
{
INTOFF();
if (VGLMouseShown != VGL_MOUSESHOW)
return 0;
if (x >= VGLMouseXpos && x < VGLMouseXpos + VGLMouseAndMask->VXsize &&
y >= VGLMouseYpos && y < VGLMouseYpos + VGLMouseAndMask->VYsize &&
VGLMouseAndMask->Bitmap[(y-VGLMouseYpos)*VGLMouseAndMask->VXsize+
(x-VGLMouseXpos)])
return 1;
return 0;
}
int
VGLMouseOverlap(int x, int y, int width, int hight)
{
int overlap;
if (VGLMouseShown != VGL_MOUSESHOW)
return 0;
if (x > VGLMouseXpos)
overlap = (VGLMouseXpos + VGLMouseAndMask->VXsize) - x;
else
overlap = (x + width) - VGLMouseXpos;
if (overlap <= 0)
return 0;
if (y > VGLMouseYpos)
overlap = (VGLMouseYpos + VGLMouseAndMask->VYsize) - y;
else
overlap = (y + hight) - VGLMouseYpos;
return overlap > 0;
}
void
VGLMouseMerge(int x, int y, int width, byte *line)
{
int pos, x1, xend, xstart;
xstart = x;
if (xstart < VGLMouseXpos)
xstart = VGLMouseXpos;
xend = x + width;
if (xend > VGLMouseXpos + VGLMouseAndMask->VXsize)
xend = VGLMouseXpos + VGLMouseAndMask->VXsize;
for (x1 = xstart; x1 < xend; x1++) {
pos = (y - VGLMouseYpos) * VGLMouseAndMask->VXsize + x1 - VGLMouseXpos;
if (VGLMouseAndMask->Bitmap[pos])
bcopy(&VGLMouseOrMask->Bitmap[pos * VGLDisplay->PixelBytes],
&line[(x1 - x) * VGLDisplay->PixelBytes], VGLDisplay->PixelBytes);
}
}
void
VGLMouseUnFreeze()
{
INTON();
}
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