the same code as the VIDBUF8 case, so it only worked for depths <= 8. The 2 directions for copying between VIDBUFs and MEMBUFs worked by using a Read/Write organization which makes the destination a VIDBUF so the MEMBUF case was not reached, and the VIDBUF cases have already been fixed. Fix this by removing "optimizations" for the VIDBUF8 case so that the MEMBUF case can fall through to the general (non-segmented) case. The optimizations were to duplicate code for the VIDBUF8 case so as to avoid 2 multiplications by 1 at runtime. This optimization is not useful since the multiplications are not in the inner loop. Remove the same "optimization" for the VIDBUF8S case. It was even less useful there since it duplicated more to do relatively less.
388 lines
11 KiB
C
388 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:
|
|
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 MEMBUF:
|
|
case VIDBUF8:
|
|
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:
|
|
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 MEMBUF:
|
|
case VIDBUF8:
|
|
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)*dst->PixelBytes);
|
|
}
|
|
}
|
|
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)*src->PixelBytes);
|
|
}
|
|
}
|
|
else {
|
|
byte buffer[2048]; /* XXX */
|
|
byte *p;
|
|
|
|
if (width * src->PixelBytes > sizeof(buffer)) {
|
|
p = malloc(width * src->PixelBytes);
|
|
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 * src->PixelBytes > 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;
|
|
|
|
if (src->Type != MEMBUF)
|
|
VGLMouseFreeze(srcx, srcy, width, hight, 0);
|
|
if (dst->Type != MEMBUF)
|
|
VGLMouseFreeze(dstx, dsty, width, hight, 0);
|
|
error = __VGLBitmapCopy(src, srcx, srcy, dst, dstx, dsty, width, hight);
|
|
if (src->Type != MEMBUF || dst->Type != MEMBUF)
|
|
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;
|
|
object->PixelBytes = VGLDisplay->PixelBytes;
|
|
return object;
|
|
}
|
|
|
|
void
|
|
VGLBitmapDestroy(VGLBitmap *object)
|
|
{
|
|
if (object->Bitmap)
|
|
free(object->Bitmap);
|
|
free(object);
|
|
}
|
|
|
|
int
|
|
VGLBitmapAllocateBits(VGLBitmap *object)
|
|
{
|
|
object->Bitmap = malloc(object->VXsize*object->VYsize*object->PixelBytes);
|
|
if (object->Bitmap == NULL)
|
|
return -1;
|
|
return 0;
|
|
}
|