mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
77073527cb
forgetting to tell the bitmap-copying clearing method to preserve the cursor.
689 lines
18 KiB
C
689 lines
18 KiB
C
/*-
|
|
* 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 <signal.h>
|
|
#include <sys/fbio.h>
|
|
#include <sys/kbio.h>
|
|
#include <sys/endian.h>
|
|
#include "vgl.h"
|
|
|
|
static int VGLBlank;
|
|
static byte VGLBorderColor;
|
|
static byte VGLSavePaletteRed[256];
|
|
static byte VGLSavePaletteGreen[256];
|
|
static byte VGLSavePaletteBlue[256];
|
|
|
|
#define ABS(a) (((a)<0) ? -(a) : (a))
|
|
#define SGN(a) (((a)<0) ? -1 : 1)
|
|
#define min(x, y) (((x) < (y)) ? (x) : (y))
|
|
#define max(x, y) (((x) > (y)) ? (x) : (y))
|
|
|
|
void
|
|
VGLSetXY(VGLBitmap *object, int x, int y, u_long color)
|
|
{
|
|
int offset, soffset, undermouse;
|
|
|
|
VGLCheckSwitch();
|
|
if (x>=0 && x<object->VXsize && y>=0 && y<object->VYsize) {
|
|
if (object == VGLDisplay) {
|
|
undermouse = VGLMouseFreezeXY(x, y);
|
|
VGLSetXY(&VGLVDisplay, x, y, color);
|
|
} else if (object->Type != MEMBUF)
|
|
return; /* invalid */
|
|
else
|
|
undermouse = 0;
|
|
if (!undermouse) {
|
|
offset = (y * object->VXsize + x) * object->PixelBytes;
|
|
switch (object->Type) {
|
|
case VIDBUF8S:
|
|
case VIDBUF16S:
|
|
case VIDBUF32S:
|
|
offset = VGLSetSegment(offset);
|
|
/* FALLTHROUGH */
|
|
case MEMBUF:
|
|
case VIDBUF8:
|
|
case VIDBUF16:
|
|
case VIDBUF24:
|
|
case VIDBUF32:
|
|
color = htole32(color);
|
|
switch (object->PixelBytes) {
|
|
case 1:
|
|
memcpy(&object->Bitmap[offset], &color, 1);
|
|
break;
|
|
case 2:
|
|
memcpy(&object->Bitmap[offset], &color, 2);
|
|
break;
|
|
case 3:
|
|
memcpy(&object->Bitmap[offset], &color, 3);
|
|
break;
|
|
case 4:
|
|
memcpy(&object->Bitmap[offset], &color, 4);
|
|
break;
|
|
}
|
|
break;
|
|
case VIDBUF24S:
|
|
soffset = VGLSetSegment(offset);
|
|
color = htole32(color);
|
|
switch (VGLAdpInfo.va_window_size - soffset) {
|
|
case 1:
|
|
memcpy(&object->Bitmap[soffset], &color, 1);
|
|
soffset = VGLSetSegment(offset + 1);
|
|
memcpy(&object->Bitmap[soffset], (byte *)&color + 1, 2);
|
|
break;
|
|
case 2:
|
|
memcpy(&object->Bitmap[soffset], &color, 2);
|
|
soffset = VGLSetSegment(offset + 2);
|
|
memcpy(&object->Bitmap[soffset], (byte *)&color + 2, 1);
|
|
break;
|
|
default:
|
|
memcpy(&object->Bitmap[soffset], &color, 3);
|
|
break;
|
|
}
|
|
break;
|
|
case VIDBUF8X:
|
|
outb(0x3c4, 0x02);
|
|
outb(0x3c5, 0x01 << (x&0x3));
|
|
object->Bitmap[(unsigned)(VGLAdpInfo.va_line_width*y)+(x/4)] = ((byte)color);
|
|
break;
|
|
case VIDBUF4S:
|
|
offset = VGLSetSegment(y*VGLAdpInfo.va_line_width + x/8);
|
|
goto set_planar;
|
|
case VIDBUF4:
|
|
offset = y*VGLAdpInfo.va_line_width + x/8;
|
|
set_planar:
|
|
outb(0x3c4, 0x02); outb(0x3c5, 0x0f);
|
|
outb(0x3ce, 0x00); outb(0x3cf, (byte)color & 0x0f); /* set/reset */
|
|
outb(0x3ce, 0x01); outb(0x3cf, 0x0f); /* set/reset enable */
|
|
outb(0x3ce, 0x08); outb(0x3cf, 0x80 >> (x%8)); /* bit mask */
|
|
object->Bitmap[offset] |= (byte)color;
|
|
}
|
|
}
|
|
if (object == VGLDisplay)
|
|
VGLMouseUnFreeze();
|
|
}
|
|
}
|
|
|
|
u_long
|
|
VGLGetXY(VGLBitmap *object, int x, int y)
|
|
{
|
|
u_long color;
|
|
int offset;
|
|
|
|
VGLCheckSwitch();
|
|
if (x<0 || x>=object->VXsize || y<0 || y>=object->VYsize)
|
|
return 0;
|
|
if (object == VGLDisplay)
|
|
object = &VGLVDisplay;
|
|
else if (object->Type != MEMBUF)
|
|
return 0; /* invalid */
|
|
offset = (y * object->VXsize + x) * object->PixelBytes;
|
|
switch (object->PixelBytes) {
|
|
case 1:
|
|
memcpy(&color, &object->Bitmap[offset], 1);
|
|
return le32toh(color) & 0xff;
|
|
case 2:
|
|
memcpy(&color, &object->Bitmap[offset], 2);
|
|
return le32toh(color) & 0xffff;
|
|
case 3:
|
|
memcpy(&color, &object->Bitmap[offset], 3);
|
|
return le32toh(color) & 0xffffff;
|
|
case 4:
|
|
memcpy(&color, &object->Bitmap[offset], 4);
|
|
return le32toh(color);
|
|
}
|
|
return 0; /* invalid */
|
|
}
|
|
|
|
/*
|
|
* Symmetric Double Step Line Algorithm by Brian Wyvill from
|
|
* "Graphics Gems", Academic Press, 1990.
|
|
*/
|
|
|
|
#define SL_SWAP(a,b) {a^=b; b^=a; a^=b;}
|
|
#define SL_ABSOLUTE(i,j,k) ( (i-j)*(k = ( (i-j)<0 ? -1 : 1)))
|
|
|
|
void
|
|
plot(VGLBitmap * object, int x, int y, int flag, u_long color)
|
|
{
|
|
/* non-zero flag indicates the pixels need swapping back. */
|
|
if (flag)
|
|
VGLSetXY(object, y, x, color);
|
|
else
|
|
VGLSetXY(object, x, y, color);
|
|
}
|
|
|
|
|
|
void
|
|
VGLLine(VGLBitmap *object, int x1, int y1, int x2, int y2, u_long color)
|
|
{
|
|
int dx, dy, incr1, incr2, D, x, y, xend, c, pixels_left;
|
|
int sign_x, sign_y, step, reverse, i;
|
|
|
|
dx = SL_ABSOLUTE(x2, x1, sign_x);
|
|
dy = SL_ABSOLUTE(y2, y1, sign_y);
|
|
/* decide increment sign by the slope sign */
|
|
if (sign_x == sign_y)
|
|
step = 1;
|
|
else
|
|
step = -1;
|
|
|
|
if (dy > dx) { /* chooses axis of greatest movement (make dx) */
|
|
SL_SWAP(x1, y1);
|
|
SL_SWAP(x2, y2);
|
|
SL_SWAP(dx, dy);
|
|
reverse = 1;
|
|
} else
|
|
reverse = 0;
|
|
/* note error check for dx==0 should be included here */
|
|
if (x1 > x2) { /* start from the smaller coordinate */
|
|
x = x2;
|
|
y = y2;
|
|
/* x1 = x1;
|
|
y1 = y1; */
|
|
} else {
|
|
x = x1;
|
|
y = y1;
|
|
x1 = x2;
|
|
y1 = y2;
|
|
}
|
|
|
|
|
|
/* Note dx=n implies 0 - n or (dx+1) pixels to be set */
|
|
/* Go round loop dx/4 times then plot last 0,1,2 or 3 pixels */
|
|
/* In fact (dx-1)/4 as 2 pixels are already plotted */
|
|
xend = (dx - 1) / 4;
|
|
pixels_left = (dx - 1) % 4; /* number of pixels left over at the
|
|
* end */
|
|
plot(object, x, y, reverse, color);
|
|
if (pixels_left < 0)
|
|
return; /* plot only one pixel for zero length
|
|
* vectors */
|
|
plot(object, x1, y1, reverse, color); /* plot first two points */
|
|
incr2 = 4 * dy - 2 * dx;
|
|
if (incr2 < 0) { /* slope less than 1/2 */
|
|
c = 2 * dy;
|
|
incr1 = 2 * c;
|
|
D = incr1 - dx;
|
|
|
|
for (i = 0; i < xend; i++) { /* plotting loop */
|
|
++x;
|
|
--x1;
|
|
if (D < 0) {
|
|
/* pattern 1 forwards */
|
|
plot(object, x, y, reverse, color);
|
|
plot(object, ++x, y, reverse, color);
|
|
/* pattern 1 backwards */
|
|
plot(object, x1, y1, reverse, color);
|
|
plot(object, --x1, y1, reverse, color);
|
|
D += incr1;
|
|
} else {
|
|
if (D < c) {
|
|
/* pattern 2 forwards */
|
|
plot(object, x, y, reverse, color);
|
|
plot(object, ++x, y += step, reverse,
|
|
color);
|
|
/* pattern 2 backwards */
|
|
plot(object, x1, y1, reverse, color);
|
|
plot(object, --x1, y1 -= step, reverse,
|
|
color);
|
|
} else {
|
|
/* pattern 3 forwards */
|
|
plot(object, x, y += step, reverse, color);
|
|
plot(object, ++x, y, reverse, color);
|
|
/* pattern 3 backwards */
|
|
plot(object, x1, y1 -= step, reverse,
|
|
color);
|
|
plot(object, --x1, y1, reverse, color);
|
|
}
|
|
D += incr2;
|
|
}
|
|
} /* end for */
|
|
|
|
/* plot last pattern */
|
|
if (pixels_left) {
|
|
if (D < 0) {
|
|
plot(object, ++x, y, reverse, color); /* pattern 1 */
|
|
if (pixels_left > 1)
|
|
plot(object, ++x, y, reverse, color);
|
|
if (pixels_left > 2)
|
|
plot(object, --x1, y1, reverse, color);
|
|
} else {
|
|
if (D < c) {
|
|
plot(object, ++x, y, reverse, color); /* pattern 2 */
|
|
if (pixels_left > 1)
|
|
plot(object, ++x, y += step, reverse, color);
|
|
if (pixels_left > 2)
|
|
plot(object, --x1, y1, reverse, color);
|
|
} else {
|
|
/* pattern 3 */
|
|
plot(object, ++x, y += step, reverse, color);
|
|
if (pixels_left > 1)
|
|
plot(object, ++x, y, reverse, color);
|
|
if (pixels_left > 2)
|
|
plot(object, --x1, y1 -= step, reverse, color);
|
|
}
|
|
}
|
|
} /* end if pixels_left */
|
|
}
|
|
/* end slope < 1/2 */
|
|
else { /* slope greater than 1/2 */
|
|
c = 2 * (dy - dx);
|
|
incr1 = 2 * c;
|
|
D = incr1 + dx;
|
|
for (i = 0; i < xend; i++) {
|
|
++x;
|
|
--x1;
|
|
if (D > 0) {
|
|
/* pattern 4 forwards */
|
|
plot(object, x, y += step, reverse, color);
|
|
plot(object, ++x, y += step, reverse, color);
|
|
/* pattern 4 backwards */
|
|
plot(object, x1, y1 -= step, reverse, color);
|
|
plot(object, --x1, y1 -= step, reverse, color);
|
|
D += incr1;
|
|
} else {
|
|
if (D < c) {
|
|
/* pattern 2 forwards */
|
|
plot(object, x, y, reverse, color);
|
|
plot(object, ++x, y += step, reverse,
|
|
color);
|
|
|
|
/* pattern 2 backwards */
|
|
plot(object, x1, y1, reverse, color);
|
|
plot(object, --x1, y1 -= step, reverse,
|
|
color);
|
|
} else {
|
|
/* pattern 3 forwards */
|
|
plot(object, x, y += step, reverse, color);
|
|
plot(object, ++x, y, reverse, color);
|
|
/* pattern 3 backwards */
|
|
plot(object, x1, y1 -= step, reverse, color);
|
|
plot(object, --x1, y1, reverse, color);
|
|
}
|
|
D += incr2;
|
|
}
|
|
} /* end for */
|
|
/* plot last pattern */
|
|
if (pixels_left) {
|
|
if (D > 0) {
|
|
plot(object, ++x, y += step, reverse, color); /* pattern 4 */
|
|
if (pixels_left > 1)
|
|
plot(object, ++x, y += step, reverse,
|
|
color);
|
|
if (pixels_left > 2)
|
|
plot(object, --x1, y1 -= step, reverse,
|
|
color);
|
|
} else {
|
|
if (D < c) {
|
|
plot(object, ++x, y, reverse, color); /* pattern 2 */
|
|
if (pixels_left > 1)
|
|
plot(object, ++x, y += step, reverse, color);
|
|
if (pixels_left > 2)
|
|
plot(object, --x1, y1, reverse, color);
|
|
} else {
|
|
/* pattern 3 */
|
|
plot(object, ++x, y += step, reverse, color);
|
|
if (pixels_left > 1)
|
|
plot(object, ++x, y, reverse, color);
|
|
if (pixels_left > 2) {
|
|
if (D > c) /* step 3 */
|
|
plot(object, --x1, y1 -= step, reverse, color);
|
|
else /* step 2 */
|
|
plot(object, --x1, y1, reverse, color);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
VGLBox(VGLBitmap *object, int x1, int y1, int x2, int y2, u_long color)
|
|
{
|
|
VGLLine(object, x1, y1, x2, y1, color);
|
|
VGLLine(object, x2, y1, x2, y2, color);
|
|
VGLLine(object, x2, y2, x1, y2, color);
|
|
VGLLine(object, x1, y2, x1, y1, color);
|
|
}
|
|
|
|
void
|
|
VGLFilledBox(VGLBitmap *object, int x1, int y1, int x2, int y2, u_long color)
|
|
{
|
|
int y;
|
|
|
|
for (y=y1; y<=y2; y++) VGLLine(object, x1, y, x2, y, color);
|
|
}
|
|
|
|
static inline void
|
|
set4pixels(VGLBitmap *object, int x, int y, int xc, int yc, u_long color)
|
|
{
|
|
if (x!=0) {
|
|
VGLSetXY(object, xc+x, yc+y, color);
|
|
VGLSetXY(object, xc-x, yc+y, color);
|
|
if (y!=0) {
|
|
VGLSetXY(object, xc+x, yc-y, color);
|
|
VGLSetXY(object, xc-x, yc-y, color);
|
|
}
|
|
}
|
|
else {
|
|
VGLSetXY(object, xc, yc+y, color);
|
|
if (y!=0)
|
|
VGLSetXY(object, xc, yc-y, color);
|
|
}
|
|
}
|
|
|
|
void
|
|
VGLEllipse(VGLBitmap *object, int xc, int yc, int a, int b, u_long color)
|
|
{
|
|
int x = 0, y = b, asq = a*a, asq2 = a*a*2, bsq = b*b;
|
|
int bsq2 = b*b*2, d = bsq-asq*b+asq/4, dx = 0, dy = asq2*b;
|
|
|
|
while (dx<dy) {
|
|
set4pixels(object, x, y, xc, yc, color);
|
|
if (d>0) {
|
|
y--; dy-=asq2; d-=dy;
|
|
}
|
|
x++; dx+=bsq2; d+=bsq+dx;
|
|
}
|
|
d+=(3*(asq-bsq)/2-(dx+dy))/2;
|
|
while (y>=0) {
|
|
set4pixels(object, x, y, xc, yc, color);
|
|
if (d<0) {
|
|
x++; dx+=bsq2; d+=dx;
|
|
}
|
|
y--; dy-=asq2; d+=asq-dy;
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
set2lines(VGLBitmap *object, int x, int y, int xc, int yc, u_long color)
|
|
{
|
|
if (x!=0) {
|
|
VGLLine(object, xc+x, yc+y, xc-x, yc+y, color);
|
|
if (y!=0)
|
|
VGLLine(object, xc+x, yc-y, xc-x, yc-y, color);
|
|
}
|
|
else {
|
|
VGLLine(object, xc, yc+y, xc, yc-y, color);
|
|
}
|
|
}
|
|
|
|
void
|
|
VGLFilledEllipse(VGLBitmap *object, int xc, int yc, int a, int b, u_long color)
|
|
{
|
|
int x = 0, y = b, asq = a*a, asq2 = a*a*2, bsq = b*b;
|
|
int bsq2 = b*b*2, d = bsq-asq*b+asq/4, dx = 0, dy = asq2*b;
|
|
|
|
while (dx<dy) {
|
|
set2lines(object, x, y, xc, yc, color);
|
|
if (d>0) {
|
|
y--; dy-=asq2; d-=dy;
|
|
}
|
|
x++; dx+=bsq2; d+=bsq+dx;
|
|
}
|
|
d+=(3*(asq-bsq)/2-(dx+dy))/2;
|
|
while (y>=0) {
|
|
set2lines(object, x, y, xc, yc, color);
|
|
if (d<0) {
|
|
x++; dx+=bsq2; d+=dx;
|
|
}
|
|
y--; dy-=asq2; d+=asq-dy;
|
|
}
|
|
}
|
|
|
|
void
|
|
VGLClear(VGLBitmap *object, u_long color)
|
|
{
|
|
VGLBitmap src;
|
|
int i, len, mousemode, offset;
|
|
|
|
VGLCheckSwitch();
|
|
if (object == VGLDisplay) {
|
|
VGLMouseFreeze();
|
|
VGLClear(&VGLVDisplay, color);
|
|
} else if (object->Type != MEMBUF)
|
|
return; /* invalid */
|
|
switch (object->Type) {
|
|
case MEMBUF:
|
|
case VIDBUF8:
|
|
case VIDBUF8S:
|
|
case VIDBUF16:
|
|
case VIDBUF16S:
|
|
case VIDBUF24:
|
|
case VIDBUF24S:
|
|
case VIDBUF32:
|
|
case VIDBUF32S:
|
|
src.Type = MEMBUF;
|
|
src.Xsize = object->Xsize;
|
|
src.VXsize = object->VXsize;
|
|
src.Ysize = 1;
|
|
src.VYsize = 1;
|
|
src.Xorigin = 0;
|
|
src.Yorigin = 0;
|
|
src.Bitmap = alloca(object->VXsize * object->PixelBytes);
|
|
src.PixelBytes = object->PixelBytes;
|
|
color = htole32(color);
|
|
for (i = 0; i < object->VXsize; i++)
|
|
bcopy(&color, src.Bitmap + i * object->PixelBytes, object->PixelBytes);
|
|
for (i = 0; i < object->VYsize; i++)
|
|
__VGLBitmapCopy(&src, 0, 0, object, 0, i, object->VXsize, -1);
|
|
break;
|
|
|
|
case VIDBUF8X:
|
|
mousemode = __VGLMouseMode(VGL_MOUSEHIDE);
|
|
/* XXX works only for Xsize % 4 = 0 */
|
|
outb(0x3c6, 0xff);
|
|
outb(0x3c4, 0x02); outb(0x3c5, 0x0f);
|
|
memset(object->Bitmap, (byte)color, VGLAdpInfo.va_line_width*object->VYsize);
|
|
__VGLMouseMode(mousemode);
|
|
break;
|
|
|
|
case VIDBUF4:
|
|
case VIDBUF4S:
|
|
mousemode = __VGLMouseMode(VGL_MOUSEHIDE);
|
|
/* XXX works only for Xsize % 8 = 0 */
|
|
outb(0x3c4, 0x02); outb(0x3c5, 0x0f);
|
|
outb(0x3ce, 0x05); outb(0x3cf, 0x02); /* mode 2 */
|
|
outb(0x3ce, 0x01); outb(0x3cf, 0x00); /* set/reset enable */
|
|
outb(0x3ce, 0x08); outb(0x3cf, 0xff); /* bit mask */
|
|
for (offset = 0; offset < VGLAdpInfo.va_line_width*object->VYsize; ) {
|
|
VGLSetSegment(offset);
|
|
len = min(object->VXsize*object->VYsize - offset,
|
|
VGLAdpInfo.va_window_size);
|
|
memset(object->Bitmap, (byte)color, len);
|
|
offset += len;
|
|
}
|
|
outb(0x3ce, 0x05); outb(0x3cf, 0x00);
|
|
__VGLMouseMode(mousemode);
|
|
break;
|
|
}
|
|
if (object == VGLDisplay)
|
|
VGLMouseUnFreeze();
|
|
}
|
|
|
|
static inline u_long
|
|
VGLrgbToNative(uint16_t r, uint16_t g, uint16_t b)
|
|
{
|
|
int nr, ng, nb;
|
|
|
|
nr = VGLModeInfo.vi_pixel_fsizes[2];
|
|
ng = VGLModeInfo.vi_pixel_fsizes[1];
|
|
nb = VGLModeInfo.vi_pixel_fsizes[0];
|
|
return (r >> (16 - nr) << (ng + nb)) | (g >> (16 - ng) << nb) |
|
|
(b >> (16 - nb) << 0);
|
|
}
|
|
|
|
u_long
|
|
VGLrgb332ToNative(byte c)
|
|
{
|
|
uint16_t r, g, b;
|
|
|
|
/* 3:3:2 to 16:16:16 */
|
|
r = ((c & 0xe0) >> 5) * 0xffff / 7;
|
|
g = ((c & 0x1c) >> 2) * 0xffff / 7;
|
|
b = ((c & 0x03) >> 0) * 0xffff / 3;
|
|
|
|
return VGLrgbToNative(r, g, b);
|
|
}
|
|
|
|
void
|
|
VGLRestorePalette()
|
|
{
|
|
int i;
|
|
|
|
if (VGLModeInfo.vi_mem_model == V_INFO_MM_DIRECT)
|
|
return;
|
|
outb(0x3C6, 0xFF);
|
|
inb(0x3DA);
|
|
outb(0x3C8, 0x00);
|
|
for (i=0; i<256; i++) {
|
|
outb(0x3C9, VGLSavePaletteRed[i]);
|
|
inb(0x84);
|
|
outb(0x3C9, VGLSavePaletteGreen[i]);
|
|
inb(0x84);
|
|
outb(0x3C9, VGLSavePaletteBlue[i]);
|
|
inb(0x84);
|
|
}
|
|
inb(0x3DA);
|
|
outb(0x3C0, 0x20);
|
|
}
|
|
|
|
void
|
|
VGLSavePalette()
|
|
{
|
|
int i;
|
|
|
|
if (VGLModeInfo.vi_mem_model == V_INFO_MM_DIRECT)
|
|
return;
|
|
outb(0x3C6, 0xFF);
|
|
inb(0x3DA);
|
|
outb(0x3C7, 0x00);
|
|
for (i=0; i<256; i++) {
|
|
VGLSavePaletteRed[i] = inb(0x3C9);
|
|
inb(0x84);
|
|
VGLSavePaletteGreen[i] = inb(0x3C9);
|
|
inb(0x84);
|
|
VGLSavePaletteBlue[i] = inb(0x3C9);
|
|
inb(0x84);
|
|
}
|
|
inb(0x3DA);
|
|
outb(0x3C0, 0x20);
|
|
}
|
|
|
|
void
|
|
VGLSetPalette(byte *red, byte *green, byte *blue)
|
|
{
|
|
int i;
|
|
|
|
if (VGLModeInfo.vi_mem_model == V_INFO_MM_DIRECT)
|
|
return;
|
|
for (i=0; i<256; i++) {
|
|
VGLSavePaletteRed[i] = red[i];
|
|
VGLSavePaletteGreen[i] = green[i];
|
|
VGLSavePaletteBlue[i] = blue[i];
|
|
}
|
|
VGLCheckSwitch();
|
|
outb(0x3C6, 0xFF);
|
|
inb(0x3DA);
|
|
outb(0x3C8, 0x00);
|
|
for (i=0; i<256; i++) {
|
|
outb(0x3C9, VGLSavePaletteRed[i]);
|
|
inb(0x84);
|
|
outb(0x3C9, VGLSavePaletteGreen[i]);
|
|
inb(0x84);
|
|
outb(0x3C9, VGLSavePaletteBlue[i]);
|
|
inb(0x84);
|
|
}
|
|
inb(0x3DA);
|
|
outb(0x3C0, 0x20);
|
|
}
|
|
|
|
void
|
|
VGLSetPaletteIndex(byte color, byte red, byte green, byte blue)
|
|
{
|
|
if (VGLModeInfo.vi_mem_model == V_INFO_MM_DIRECT)
|
|
return;
|
|
VGLSavePaletteRed[color] = red;
|
|
VGLSavePaletteGreen[color] = green;
|
|
VGLSavePaletteBlue[color] = blue;
|
|
VGLCheckSwitch();
|
|
outb(0x3C6, 0xFF);
|
|
inb(0x3DA);
|
|
outb(0x3C8, color);
|
|
outb(0x3C9, red); outb(0x3C9, green); outb(0x3C9, blue);
|
|
inb(0x3DA);
|
|
outb(0x3C0, 0x20);
|
|
}
|
|
|
|
void
|
|
VGLRestoreBorder(void)
|
|
{
|
|
VGLSetBorder(VGLBorderColor);
|
|
}
|
|
|
|
void
|
|
VGLSetBorder(byte color)
|
|
{
|
|
if (VGLModeInfo.vi_mem_model == V_INFO_MM_DIRECT && ioctl(0, KDENABIO, 0))
|
|
return;
|
|
VGLCheckSwitch();
|
|
inb(0x3DA);
|
|
outb(0x3C0,0x11); outb(0x3C0, color);
|
|
inb(0x3DA);
|
|
outb(0x3C0, 0x20);
|
|
VGLBorderColor = color;
|
|
if (VGLModeInfo.vi_mem_model == V_INFO_MM_DIRECT)
|
|
ioctl(0, KDDISABIO, 0);
|
|
}
|
|
|
|
void
|
|
VGLRestoreBlank(void)
|
|
{
|
|
VGLBlankDisplay(VGLBlank);
|
|
}
|
|
|
|
void
|
|
VGLBlankDisplay(int blank)
|
|
{
|
|
byte val;
|
|
|
|
if (VGLModeInfo.vi_mem_model == V_INFO_MM_DIRECT && ioctl(0, KDENABIO, 0))
|
|
return;
|
|
VGLCheckSwitch();
|
|
outb(0x3C4, 0x01); val = inb(0x3C5); outb(0x3C4, 0x01);
|
|
outb(0x3C5, ((blank) ? (val |= 0x20) : (val &= 0xDF)));
|
|
VGLBlank = blank;
|
|
if (VGLModeInfo.vi_mem_model == V_INFO_MM_DIRECT)
|
|
ioctl(0, KDDISABIO, 0);
|
|
}
|