mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
407 lines
11 KiB
C
407 lines
11 KiB
C
/*-
|
|
* 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;
|
|
}
|