148 lines
4.1 KiB
C
148 lines
4.1 KiB
C
/*
|
|
* Copyright © 1998 Keith Packard
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation, and that the name of Keith Packard not be used in
|
|
* advertising or publicity pertaining to distribution of the software without
|
|
* specific, written prior permission. Keith Packard makes no
|
|
* representations about the suitability of this software for any purpose. It
|
|
* is provided "as is" without express or implied warranty.
|
|
*
|
|
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <dix-config.h>
|
|
|
|
#include "fb.h"
|
|
|
|
static void
|
|
fbZeroLine(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt, DDXPointPtr ppt)
|
|
{
|
|
int x1, y1, x2, y2;
|
|
int x, y;
|
|
int dashOffset;
|
|
|
|
x = pDrawable->x;
|
|
y = pDrawable->y;
|
|
x1 = ppt->x;
|
|
y1 = ppt->y;
|
|
dashOffset = pGC->dashOffset;
|
|
while (--npt) {
|
|
++ppt;
|
|
x2 = ppt->x;
|
|
y2 = ppt->y;
|
|
if (mode == CoordModePrevious) {
|
|
x2 += x1;
|
|
y2 += y1;
|
|
}
|
|
fbSegment(pDrawable, pGC, x1 + x, y1 + y,
|
|
x2 + x, y2 + y,
|
|
npt == 1 && pGC->capStyle != CapNotLast, &dashOffset);
|
|
x1 = x2;
|
|
y1 = y2;
|
|
}
|
|
}
|
|
|
|
static void
|
|
fbZeroSegment(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pSegs)
|
|
{
|
|
int dashOffset;
|
|
int x, y;
|
|
Bool drawLast = pGC->capStyle != CapNotLast;
|
|
|
|
x = pDrawable->x;
|
|
y = pDrawable->y;
|
|
while (nseg--) {
|
|
dashOffset = pGC->dashOffset;
|
|
fbSegment(pDrawable, pGC,
|
|
pSegs->x1 + x, pSegs->y1 + y,
|
|
pSegs->x2 + x, pSegs->y2 + y, drawLast, &dashOffset);
|
|
pSegs++;
|
|
}
|
|
}
|
|
|
|
void
|
|
fbFixCoordModePrevious(int npt, DDXPointPtr ppt)
|
|
{
|
|
int x, y;
|
|
|
|
x = ppt->x;
|
|
y = ppt->y;
|
|
npt--;
|
|
while (npt--) {
|
|
ppt++;
|
|
x = (ppt->x += x);
|
|
y = (ppt->y += y);
|
|
}
|
|
}
|
|
|
|
void
|
|
fbPolyLine(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt, DDXPointPtr ppt)
|
|
{
|
|
void (*line) (DrawablePtr, GCPtr, int mode, int npt, DDXPointPtr ppt);
|
|
|
|
if (pGC->lineWidth == 0) {
|
|
line = fbZeroLine;
|
|
if (pGC->fillStyle == FillSolid &&
|
|
pGC->lineStyle == LineSolid &&
|
|
RegionNumRects(fbGetCompositeClip(pGC)) == 1) {
|
|
switch (pDrawable->bitsPerPixel) {
|
|
case 8:
|
|
line = fbPolyline8;
|
|
break;
|
|
case 16:
|
|
line = fbPolyline16;
|
|
break;
|
|
case 32:
|
|
line = fbPolyline32;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if (pGC->lineStyle != LineSolid)
|
|
line = miWideDash;
|
|
else
|
|
line = miWideLine;
|
|
}
|
|
(*line) (pDrawable, pGC, mode, npt, ppt);
|
|
}
|
|
|
|
void
|
|
fbPolySegment(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pseg)
|
|
{
|
|
void (*seg) (DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pseg);
|
|
|
|
if (pGC->lineWidth == 0) {
|
|
seg = fbZeroSegment;
|
|
if (pGC->fillStyle == FillSolid &&
|
|
pGC->lineStyle == LineSolid &&
|
|
RegionNumRects(fbGetCompositeClip(pGC)) == 1) {
|
|
switch (pDrawable->bitsPerPixel) {
|
|
case 8:
|
|
seg = fbPolySegment8;
|
|
break;
|
|
case 16:
|
|
seg = fbPolySegment16;
|
|
break;
|
|
case 32:
|
|
seg = fbPolySegment32;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
seg = miPolySegment;
|
|
}
|
|
(*seg) (pDrawable, pGC, nseg, pseg);
|
|
}
|