worked right for white interiors and black borders was used). Advertise this by changing the default colors to a red interior and a white border (the same as the kernel default). Add undocumented env variables for changing these colors. Also change to the larger and better-shaped 16x10 cursor sometimes used in the kernel. The kernel choice is fancier, but libvgl is closer to supporting the larger cursors needed in newer modes. The (n)and-or logic for the cursor doesn't work right for more than 2 colors. The (n)and part only masks out all color bits for the pixel under the cursor when all bits are set in the And mask. With more complicated logic, the non-masked bits could be used to implement translucent cursors, but they actually just gave strange colors (especially in packed and planar modes where the bits are indirect through 1 or 2 palettes so it is hard to predict the final color). They also gave a bug for writing pixels under the cursor. The non-masked bits under the cursor were not combined in this case. Drop support for combining with bits under the cursor by making any nonzero value in the And mask mean all bits set. Convert the Or mask (which is represented as a half-initialized 256-color bitmap) to a fully initialized bitmap with the correct number of colors. The 256-color representation must be as in 3:3:2 direct mode iff the final bitmap has more than 256 colors. The conversion of colors is not very efficient, so convert at initialization time.
364 lines
10 KiB
C
364 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 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 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 pos;
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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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buffer.PixelBytes = VGLDisplay->PixelBytes;
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__VGLBitmapCopy(&VGLVDisplay, VGLMouseXpos, VGLMouseYpos,
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&buffer, 0, 0, MOUSE_IMG_SIZE, MOUSE_IMG_SIZE);
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for (pos = 0; pos < MOUSE_IMG_SIZE*MOUSE_IMG_SIZE; pos++)
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if (VGLMouseAndMask->Bitmap[pos])
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bcopy(&VGLMouseOrMask->Bitmap[pos*VGLDisplay->PixelBytes],
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&buffer.Bitmap[pos*VGLDisplay->PixelBytes],
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VGLDisplay->PixelBytes);
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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(&VGLVDisplay, VGLMouseXpos, VGLMouseYpos, 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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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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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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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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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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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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if (color & 0x80000000) { /* Set */
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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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