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|
#ifndef UNSUPPORTED
/* this two routines implements solid guessing. They are almost same. One
* caluclates lines, second rows.
*
* The heruistic is as follows:
*
* ---1------6------5------- (vbuffu)
* | | |
* ===7======X======8======= (vbuff1)
* | | |
* ---2------3------4------- (vbuffd)
* distdown rx distup
*
* -- and | means calculated lines. == is current line, names are pointers to
* them. Note that naming is quite confusing, because it is same in lines and
* rows.
*
* we do solid guessing as folows:
* |distl-vbuff1| < range
* |distr-vbuff1| < range
* the distance of distup and distdown is not limited, because we already
* have exact enought guesses 3 and 6
*
* points 1 2 3 4 5 6 8 must be the same (point 8 is not yet calculated)
*
*/
static void calcline(realloc_t * RESTRICT ry) REGISTERS(3);
REGISTERS(3)
static void calcline(realloc_t * RESTRICT ry)
{
number_t y;
int range = cfractalc.range;
realloc_t *RESTRICT rx, *rend, *rend1, *ryl, *ryr;
int distl, distr, distup, distdown;
cpixel_t *RESTRICT vbuff, *RESTRICT vbuffu, *RESTRICT vbuffd;
cpixeldata_t inset = (cpixeldata_t) cpalette.pixels[0];
cpixeldata_t c;
cppixel_t *vbuff1 =
(cpixel_t **) cimage.currlines + (ry - czoomc.reallocy);
assert(ry >= czoomc.reallocy);
assert(ry < czoomc.reallocy + cimage.height);
y = ry->possition;
rend = ry - range - 1;
if (czoomc.reallocy > rend)
rend = czoomc.reallocy;
for (ryl = ry - 1; rend <= ryl && ryl->dirty; ryl--);
distl = (int) (ryl - ry);
rend = ry + range;
if (czoomc.reallocy + cimage.height < rend)
rend = czoomc.reallocy + cimage.height;
for (ryr = ry + 1; rend > ryr && ryr->dirty; ryr++);
distr = (int) (ryr - ry);
rend = czoomc.reallocy + cimage.height;
if (ryr == czoomc.reallocy + cimage.height || ryl < czoomc.reallocy
|| ryr->dirty || ryl->dirty) {
for (rx = czoomc.reallocx, vbuff = *vbuff1,
rend1 = czoomc.reallocx + cimage.width; rx < rend1; rx++) {
if (!rx->dirty) {
STAT(tocalculate++);
p_set(vbuff,
(cpixeldata_t) calculate(rx->possition, y,
cfractalc.periodicity));
#ifdef DRAW
vga_setcolor(0xff0000);
vga_drawpixel(rx - czoomc.reallocx, ry - czoomc.reallocy);
#endif
}
p_inc(vbuff, 1);
}
} else {
distup = INT_MAX / 2;
distdown = 0;
for (rx = czoomc.reallocx,
vbuff = vbuff1[0], vbuffu = vbuff1[distl], vbuffd =
vbuff1[distr], rend1 = czoomc.reallocx + cimage.width;
rx < rend1; rx++) {
assert(rx < czoomc.reallocx + cimage.width);
assert(rx >= czoomc.reallocx);
if (!rx->dirty) {
STAT(tocalculate++);
if (distdown <= 0) {
for (ryr = rx + 1; ryr < rend1 && ryr->dirty; ryr++);
distdown = (int) (ryr - rx);
if (ryr == rend1)
distdown = INT_MAX / 2;
}
if (distdown < INT_MAX / 4 && distup < INT_MAX / 4 &&
(p_get(vbuffu) == (c = p_get(vbuffd)) &&
c == p_getp(vbuff, -distup) &&
c == p_getp(vbuffu, -distup) &&
c == p_getp(vbuffu, distdown) &&
c == p_getp(vbuffd, distdown) &&
c == p_getp(vbuffd, -distup))) {
p_set(vbuff, c);
STAT(avoided++);
} else {
if (cfractalc.periodicity &&
distdown < INT_MAX / 4 && distup < INT_MAX / 4 &&
(p_get(vbuffu) != inset &&
p_get(vbuffd) != inset &&
p_getp(vbuff, -distup) != inset &&
p_getp(vbuffu, -distup) != inset &&
p_getp(vbuffu, +distdown) != inset &&
p_getp(vbuffd, -distup) != inset &&
p_getp(vbuffd, +distdown) != inset))
p_set(vbuff,
(cpixeldata_t) calculate(rx->possition, y,
0));
else
p_set(vbuff,
(cpixeldata_t) calculate(rx->possition, y,
cfractalc.
periodicity));
#ifdef DRAW
vga_setcolor(0xffffff);
vga_drawpixel(rx - czoomc.reallocx,
ry - czoomc.reallocy);
#endif
}
distup = 0;
}
p_inc(vbuff, 1);
p_inc(vbuffu, 1);
p_inc(vbuffd, 1);
distdown--;
distup++;
}
}
ry->recalculate = 0;
ry->dirty = 0;
}
static void calccolumn(realloc_t * RESTRICT rx) REGISTERS(3);
REGISTERS(3)
static void calccolumn(realloc_t * RESTRICT rx)
{
number_t x;
int range = cfractalc.range;
realloc_t *RESTRICT ry, *rend, *rend1, *rxl, *rxr;
int pos, distl, distr, distup, distdown;
cpixeldata_t c;
cpixeldata_t inset = (cpixeldata_t) cpalette.pixels[0];
cppixel_t *RESTRICT vbuff;
pos = (int) (rx - czoomc.reallocx);
assert(pos >= 0);
assert(pos < cimage.width);
rend = rx - range + 1;
if (czoomc.reallocx > rend)
rend = czoomc.reallocx;
for (rxl = rx - 1; rend <= rxl && rxl->dirty; rxl--);
distl = (int) (rx - rxl);
rend = rx + range;
if (czoomc.reallocx + cimage.width < rend)
rend = czoomc.reallocx + cimage.width;
for (rxr = rx + 1; rxr < rend && rxr->dirty; rxr++);
distr = (int) (rxr - rx);
x = rx->possition;
rend = czoomc.reallocx + cimage.width;
if (rxr >= czoomc.reallocx + cimage.width || rxl < czoomc.reallocx
|| rxr->dirty || rxl->dirty) {
for (ry = czoomc.reallocy, vbuff =
(cppixel_t *) cimage.currlines, rend1 =
czoomc.reallocy + cimage.height; ry < rend1; ry++, vbuff++) {
if (!ry->dirty) {
STAT(tocalculate++);
p_setp((*vbuff), pos,
(cpixeldata_t) calculate(x, ry->possition,
cfractalc.periodicity));
#ifdef DRAW
vga_setcolor(0xff0000);
vga_drawpixel(rx - czoomc.reallocx, ry - czoomc.reallocy);
#endif
}
}
} else {
distl = pos - distl;
distr = pos + distr;
assert(distl >= 0);
assert(distr < cimage.width);
distup = INT_MAX / 2;
distdown = 0;
for (ry = czoomc.reallocy, vbuff =
(cppixel_t *) cimage.currlines, rend1 =
czoomc.reallocy + cimage.height; ry < rend1; ry++) {
/*if (ry->symto == -1) { */
assert(ry < czoomc.reallocy + cimage.height);
if (!ry->dirty) {
STAT(tocalculate++);
if (distdown <= 0) {
for (rxr = ry + 1; rxr < rend1 && rxr->dirty; rxr++);
distdown = (int) (rxr - ry);
if (rxr == rend1)
distdown = INT_MAX / 2;
}
if (distdown < INT_MAX / 4 && distup < INT_MAX / 4 &&
(p_getp(vbuff[0], distl) ==
(c = p_getp(vbuff[0], distr))
&& p_getp(vbuff[-distup], distl) == c
&& p_getp(vbuff[-distup], distr) == c
&& p_getp(vbuff[-distup], pos) == c
&& p_getp(vbuff[distdown], distr) == c
&& p_getp(vbuff[distdown], distl) == c)) {
STAT(avoided++);
p_setp(vbuff[0], pos, c);
} else {
if (cfractalc.periodicity &&
distdown < INT_MAX / 4 && distup < INT_MAX / 4 &&
(p_getp(vbuff[0], distl) != inset &&
p_getp(vbuff[0], distr) != inset &&
p_getp(vbuff[distdown], distr) != inset &&
p_getp(vbuff[distdown], distl) != inset &&
p_getp(vbuff[-distup], distl) != inset &&
p_getp(vbuff[-distup], pos) != inset &&
p_getp(vbuff[-distup], distr) != inset))
p_setp(vbuff[0], pos,
(cpixeldata_t) calculate(x, ry->possition,
0));
else
p_setp(vbuff[0], pos,
(cpixeldata_t) calculate(x, ry->possition,
cfractalc.
periodicity));
#ifdef DRAW
vga_setcolor(0xffffff);
vga_drawpixel(rx - czoomc.reallocx,
ry - czoomc.reallocy);
#endif
}
distup = 0;
}
vbuff++;
distdown--;
distup++;
}
}
rx->recalculate = 0;
rx->dirty = 0;
}
static /*INLINE */ void
dosymetry2(void /*@unused@ */ *data, struct taskinfo /*@unused@ */ *task,
int r1, int r2)
{
cpixel_t **vbuff = (cpixel_t **) cimage.currlines;
realloc_t *rx, *rend;
cpixel_t **vend = (cpixel_t **) cimage.currlines + cimage.height;
for (rx = czoomc.reallocx + r1, rend = czoomc.reallocx + r2; rx < rend;
rx++) {
assert(rx->symto >= 0 || rx->symto == -1);
if (rx->symto >= 0) {
assert(rx->symto < cimage.width);
if (!czoomc.reallocx[rx->symto].dirty) {
int pos = (int) (rx - czoomc.reallocx);
int pos1 = rx->symto;
vbuff = (cpixel_t **) cimage.currlines;
for (; vbuff < vend; vbuff++)
p_copy(vbuff[0], pos, vbuff[0], pos1);
rx->dirty = 0;
}
}
}
}
#ifndef USE_i386ASM
/*
* Fill - bitmap depended part.
*
* This function is called, when calculation was interrupted because of
* timeout. It fills uncalculated rows by nearest one
*
* This function is very time critical in higher resultions I am shooting
* for.
*/
#ifndef __GNUC__
#undef bpp1
#endif
#ifndef __i386__
#undef bpp1
#endif
#undef bpp1
static INLINE void fillline(int line)
{
register unsigned char *RESTRICT vbuff = cimage.currlines[line];
CONST struct filltable *RESTRICT table = (struct filltable *) tmpdata;
while (table->length) {
register cpixeldata_t s =
p_get((cpixel_t *) (vbuff + table->from));
register cpixel_t *vcurr = (cpixel_t *) (vbuff + table->to);
#ifdef bpp1
memset(vcurr, s, table->length);
#else
register cpixel_t *vend = (cpixel_t *) (vbuff + table->end);
while (vcurr < vend) {
p_set(vcurr, s);
p_inc(vcurr, 1);
}
#endif
table++;
}
}
#endif
#endif
#undef dosymetry2
#undef calcline
#undef calccolumn
#undef fillline
#undef rend
|
