260ba0bff1
Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
409 lines
11 KiB
C
409 lines
11 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 <sys/types.h>
|
|
#include <signal.h>
|
|
#include <sys/fbio.h>
|
|
#include "vgl.h"
|
|
|
|
#define min(x, y) (((x) < (y)) ? (x) : (y))
|
|
|
|
static byte mask[8] = {0xff, 0x7f, 0x3f, 0x1f, 0x0f, 0x07, 0x03, 0x01};
|
|
static int color2bit[16] = {0x00000000, 0x00000001, 0x00000100, 0x00000101,
|
|
0x00010000, 0x00010001, 0x00010100, 0x00010101,
|
|
0x01000000, 0x01000001, 0x01000100, 0x01000101,
|
|
0x01010000, 0x01010001, 0x01010100, 0x01010101};
|
|
|
|
static void
|
|
WriteVerticalLine(VGLBitmap *dst, int x, int y, int width, byte *line)
|
|
{
|
|
int i, pos, last, planepos, start_offset, end_offset, offset;
|
|
int len;
|
|
unsigned int word = 0;
|
|
byte *address;
|
|
byte *VGLPlane[4];
|
|
|
|
switch (dst->Type) {
|
|
case VIDBUF4:
|
|
case VIDBUF4S:
|
|
start_offset = (x & 0x07);
|
|
end_offset = (x + width) & 0x07;
|
|
i = (width + start_offset) / 8;
|
|
if (end_offset)
|
|
i++;
|
|
VGLPlane[0] = VGLBuf;
|
|
VGLPlane[1] = VGLPlane[0] + i;
|
|
VGLPlane[2] = VGLPlane[1] + i;
|
|
VGLPlane[3] = VGLPlane[2] + i;
|
|
pos = 0;
|
|
planepos = 0;
|
|
last = 8 - start_offset;
|
|
while (pos < width) {
|
|
word = 0;
|
|
while (pos < last && pos < width)
|
|
word = (word<<1) | color2bit[line[pos++]&0x0f];
|
|
VGLPlane[0][planepos] = word;
|
|
VGLPlane[1][planepos] = word>>8;
|
|
VGLPlane[2][planepos] = word>>16;
|
|
VGLPlane[3][planepos] = word>>24;
|
|
planepos++;
|
|
last += 8;
|
|
}
|
|
planepos--;
|
|
if (end_offset) {
|
|
word <<= (8 - end_offset);
|
|
VGLPlane[0][planepos] = word;
|
|
VGLPlane[1][planepos] = word>>8;
|
|
VGLPlane[2][planepos] = word>>16;
|
|
VGLPlane[3][planepos] = word>>24;
|
|
}
|
|
if (start_offset || end_offset)
|
|
width+=8;
|
|
width /= 8;
|
|
outb(0x3ce, 0x01); outb(0x3cf, 0x00); /* set/reset enable */
|
|
outb(0x3ce, 0x08); outb(0x3cf, 0xff); /* bit mask */
|
|
for (i=0; i<4; i++) {
|
|
outb(0x3c4, 0x02);
|
|
outb(0x3c5, 0x01<<i);
|
|
outb(0x3ce, 0x04);
|
|
outb(0x3cf, i);
|
|
pos = VGLAdpInfo.va_line_width*y + x/8;
|
|
if (dst->Type == VIDBUF4) {
|
|
if (end_offset)
|
|
VGLPlane[i][planepos] |= dst->Bitmap[pos+planepos] & mask[end_offset];
|
|
if (start_offset)
|
|
VGLPlane[i][0] |= dst->Bitmap[pos] & ~mask[start_offset];
|
|
bcopy(&VGLPlane[i][0], dst->Bitmap + pos, width);
|
|
} else { /* VIDBUF4S */
|
|
if (end_offset) {
|
|
offset = VGLSetSegment(pos + planepos);
|
|
VGLPlane[i][planepos] |= dst->Bitmap[offset] & mask[end_offset];
|
|
}
|
|
offset = VGLSetSegment(pos);
|
|
if (start_offset)
|
|
VGLPlane[i][0] |= dst->Bitmap[offset] & ~mask[start_offset];
|
|
for (last = width; ; ) {
|
|
len = min(VGLAdpInfo.va_window_size - offset, last);
|
|
bcopy(&VGLPlane[i][width - last], dst->Bitmap + offset, len);
|
|
pos += len;
|
|
last -= len;
|
|
if (last <= 0)
|
|
break;
|
|
offset = VGLSetSegment(pos);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case VIDBUF8X:
|
|
address = dst->Bitmap + VGLAdpInfo.va_line_width * y + x/4;
|
|
for (i=0; i<4; i++) {
|
|
outb(0x3c4, 0x02);
|
|
outb(0x3c5, 0x01 << ((x + i)%4));
|
|
for (planepos=0, pos=i; pos<width; planepos++, pos+=4)
|
|
address[planepos] = line[pos];
|
|
if ((x + i)%4 == 3)
|
|
++address;
|
|
}
|
|
break;
|
|
case VIDBUF8S:
|
|
pos = dst->VXsize * y + x;
|
|
while (width > 0) {
|
|
offset = VGLSetSegment(pos);
|
|
i = min(VGLAdpInfo.va_window_size - offset, width);
|
|
bcopy(line, dst->Bitmap + offset, i);
|
|
line += i;
|
|
pos += i;
|
|
width -= i;
|
|
}
|
|
break;
|
|
case VIDBUF16S:
|
|
case VIDBUF24S:
|
|
case VIDBUF32S:
|
|
width = width * dst->PixelBytes;
|
|
pos = (dst->VXsize * y + x) * dst->PixelBytes;
|
|
while (width > 0) {
|
|
offset = VGLSetSegment(pos);
|
|
i = min(VGLAdpInfo.va_window_size - offset, width);
|
|
bcopy(line, dst->Bitmap + offset, i);
|
|
line += i;
|
|
pos += i;
|
|
width -= i;
|
|
}
|
|
break;
|
|
case VIDBUF8:
|
|
case MEMBUF:
|
|
address = dst->Bitmap + dst->VXsize * y + x;
|
|
bcopy(line, address, width);
|
|
break;
|
|
case VIDBUF16:
|
|
case VIDBUF24:
|
|
case VIDBUF32:
|
|
address = dst->Bitmap + (dst->VXsize * y + x) * dst->PixelBytes;
|
|
bcopy(line, address, width * dst->PixelBytes);
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ReadVerticalLine(VGLBitmap *src, int x, int y, int width, byte *line)
|
|
{
|
|
int i, bit, pos, count, planepos, start_offset, end_offset, offset;
|
|
int width2, len;
|
|
byte *address;
|
|
byte *VGLPlane[4];
|
|
|
|
switch (src->Type) {
|
|
case VIDBUF4S:
|
|
start_offset = (x & 0x07);
|
|
end_offset = (x + width) & 0x07;
|
|
count = (width + start_offset) / 8;
|
|
if (end_offset)
|
|
count++;
|
|
VGLPlane[0] = VGLBuf;
|
|
VGLPlane[1] = VGLPlane[0] + count;
|
|
VGLPlane[2] = VGLPlane[1] + count;
|
|
VGLPlane[3] = VGLPlane[2] + count;
|
|
for (i=0; i<4; i++) {
|
|
outb(0x3ce, 0x04);
|
|
outb(0x3cf, i);
|
|
pos = VGLAdpInfo.va_line_width*y + x/8;
|
|
for (width2 = count; width2 > 0; ) {
|
|
offset = VGLSetSegment(pos);
|
|
len = min(VGLAdpInfo.va_window_size - offset, width2);
|
|
bcopy(src->Bitmap + offset, &VGLPlane[i][count - width2], len);
|
|
pos += len;
|
|
width2 -= len;
|
|
}
|
|
}
|
|
goto read_planar;
|
|
case VIDBUF4:
|
|
address = src->Bitmap + VGLAdpInfo.va_line_width * y + x/8;
|
|
start_offset = (x & 0x07);
|
|
end_offset = (x + width) & 0x07;
|
|
count = (width + start_offset) / 8;
|
|
if (end_offset)
|
|
count++;
|
|
VGLPlane[0] = VGLBuf;
|
|
VGLPlane[1] = VGLPlane[0] + count;
|
|
VGLPlane[2] = VGLPlane[1] + count;
|
|
VGLPlane[3] = VGLPlane[2] + count;
|
|
for (i=0; i<4; i++) {
|
|
outb(0x3ce, 0x04);
|
|
outb(0x3cf, i);
|
|
bcopy(address, &VGLPlane[i][0], count);
|
|
}
|
|
read_planar:
|
|
pos = 0;
|
|
planepos = 0;
|
|
bit = 7 - start_offset;
|
|
while (pos < width) {
|
|
for (; bit >= 0 && pos < width; bit--, pos++) {
|
|
line[pos] = (VGLPlane[0][planepos] & (1<<bit) ? 1 : 0) |
|
|
((VGLPlane[1][planepos] & (1<<bit) ? 1 : 0) << 1) |
|
|
((VGLPlane[2][planepos] & (1<<bit) ? 1 : 0) << 2) |
|
|
((VGLPlane[3][planepos] & (1<<bit) ? 1 : 0) << 3);
|
|
}
|
|
planepos++;
|
|
bit = 7;
|
|
}
|
|
break;
|
|
case VIDBUF8X:
|
|
address = src->Bitmap + VGLAdpInfo.va_line_width * y + x/4;
|
|
for (i=0; i<4; i++) {
|
|
outb(0x3ce, 0x04);
|
|
outb(0x3cf, (x + i)%4);
|
|
for (planepos=0, pos=i; pos<width; planepos++, pos+=4)
|
|
line[pos] = address[planepos];
|
|
if ((x + i)%4 == 3)
|
|
++address;
|
|
}
|
|
break;
|
|
case VIDBUF8S:
|
|
pos = src->VXsize * y + x;
|
|
while (width > 0) {
|
|
offset = VGLSetSegment(pos);
|
|
i = min(VGLAdpInfo.va_window_size - offset, width);
|
|
bcopy(src->Bitmap + offset, line, i);
|
|
line += i;
|
|
pos += i;
|
|
width -= i;
|
|
}
|
|
break;
|
|
case VIDBUF16S:
|
|
case VIDBUF24S:
|
|
case VIDBUF32S:
|
|
width = width * src->PixelBytes;
|
|
pos = (src->VXsize * y + x) * src->PixelBytes;
|
|
while (width > 0) {
|
|
offset = VGLSetSegment(pos);
|
|
i = min(VGLAdpInfo.va_window_size - offset, width);
|
|
bcopy(src->Bitmap + offset, line, i);
|
|
line += i;
|
|
pos += i;
|
|
width -= i;
|
|
}
|
|
break;
|
|
case VIDBUF8:
|
|
case MEMBUF:
|
|
address = src->Bitmap + src->VXsize * y + x;
|
|
bcopy(address, line, width);
|
|
break;
|
|
case VIDBUF16:
|
|
case VIDBUF24:
|
|
case VIDBUF32:
|
|
address = src->Bitmap + (src->VXsize * y + x) * src->PixelBytes;
|
|
bcopy(address, line, width * src->PixelBytes);
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
}
|
|
|
|
int
|
|
__VGLBitmapCopy(VGLBitmap *src, int srcx, int srcy,
|
|
VGLBitmap *dst, int dstx, int dsty, int width, int hight)
|
|
{
|
|
int srcline, dstline;
|
|
|
|
if (srcx>src->VXsize || srcy>src->VYsize
|
|
|| dstx>dst->VXsize || dsty>dst->VYsize)
|
|
return -1;
|
|
if (srcx < 0) {
|
|
width=width+srcx; dstx-=srcx; srcx=0;
|
|
}
|
|
if (srcy < 0) {
|
|
hight=hight+srcy; dsty-=srcy; srcy=0;
|
|
}
|
|
if (dstx < 0) {
|
|
width=width+dstx; srcx-=dstx; dstx=0;
|
|
}
|
|
if (dsty < 0) {
|
|
hight=hight+dsty; srcy-=dsty; dsty=0;
|
|
}
|
|
if (srcx+width > src->VXsize)
|
|
width=src->VXsize-srcx;
|
|
if (srcy+hight > src->VYsize)
|
|
hight=src->VYsize-srcy;
|
|
if (dstx+width > dst->VXsize)
|
|
width=dst->VXsize-dstx;
|
|
if (dsty+hight > dst->VYsize)
|
|
hight=dst->VYsize-dsty;
|
|
if (width < 0 || hight < 0)
|
|
return -1;
|
|
if (src->Type == MEMBUF) {
|
|
for (srcline=srcy, dstline=dsty; srcline<srcy+hight; srcline++, dstline++) {
|
|
WriteVerticalLine(dst, dstx, dstline, width,
|
|
(src->Bitmap+(srcline*src->VXsize)+srcx));
|
|
}
|
|
}
|
|
else if (dst->Type == MEMBUF) {
|
|
for (srcline=srcy, dstline=dsty; srcline<srcy+hight; srcline++, dstline++) {
|
|
ReadVerticalLine(src, srcx, srcline, width,
|
|
(dst->Bitmap+(dstline*dst->VXsize)+dstx));
|
|
}
|
|
}
|
|
else {
|
|
byte buffer[2048]; /* XXX */
|
|
byte *p;
|
|
|
|
if (width > sizeof(buffer)) {
|
|
p = malloc(width);
|
|
if (p == NULL)
|
|
return 1;
|
|
} else {
|
|
p = buffer;
|
|
}
|
|
for (srcline=srcy, dstline=dsty; srcline<srcy+hight; srcline++, dstline++) {
|
|
ReadVerticalLine(src, srcx, srcline, width, p);
|
|
WriteVerticalLine(dst, dstx, dstline, width, p);
|
|
}
|
|
if (width > sizeof(buffer))
|
|
free(p);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
VGLBitmapCopy(VGLBitmap *src, int srcx, int srcy,
|
|
VGLBitmap *dst, int dstx, int dsty, int width, int hight)
|
|
{
|
|
int error;
|
|
|
|
VGLMouseFreeze(dstx, dsty, width, hight, 0);
|
|
error = __VGLBitmapCopy(src, srcx, srcy, dst, dstx, dsty, width, hight);
|
|
VGLMouseUnFreeze();
|
|
return error;
|
|
}
|
|
|
|
VGLBitmap
|
|
*VGLBitmapCreate(int type, int xsize, int ysize, byte *bits)
|
|
{
|
|
VGLBitmap *object;
|
|
|
|
if (type != MEMBUF)
|
|
return NULL;
|
|
if (xsize < 0 || ysize < 0)
|
|
return NULL;
|
|
object = (VGLBitmap *)malloc(sizeof(*object));
|
|
if (object == NULL)
|
|
return NULL;
|
|
object->Type = type;
|
|
object->Xsize = xsize;
|
|
object->Ysize = ysize;
|
|
object->VXsize = xsize;
|
|
object->VYsize = ysize;
|
|
object->Xorigin = 0;
|
|
object->Yorigin = 0;
|
|
object->Bitmap = bits;
|
|
return object;
|
|
}
|
|
|
|
void
|
|
VGLBitmapDestroy(VGLBitmap *object)
|
|
{
|
|
if (object->Bitmap)
|
|
free(object->Bitmap);
|
|
free(object);
|
|
}
|
|
|
|
int
|
|
VGLBitmapAllocateBits(VGLBitmap *object)
|
|
{
|
|
object->Bitmap = (byte *)malloc(object->VXsize*object->VYsize);
|
|
if (object->Bitmap == NULL)
|
|
return -1;
|
|
return 0;
|
|
}
|