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-rw-r--r--mi/miwideline.c3144
1 files changed, 1466 insertions, 1678 deletions
diff --git a/mi/miwideline.c b/mi/miwideline.c
index 057339dbe..ca18f156e 100644
--- a/mi/miwideline.c
+++ b/mi/miwideline.c
@@ -41,7 +41,7 @@ from The Open Group.
#ifdef _XOPEN_SOURCE
#include <math.h>
#else
-#define _XOPEN_SOURCE /* to get prototype for hypot on some systems */
+#define _XOPEN_SOURCE /* to get prototype for hypot on some systems */
#include <math.h>
#undef _XOPEN_SOURCE
#endif
@@ -53,16 +53,15 @@ from The Open Group.
#include "mi.h"
static Bool
-InitSpans(Spans *spans, size_t nspans)
+InitSpans(Spans * spans, size_t nspans)
{
- spans->points = malloc(nspans * sizeof (*spans->points));
+ spans->points = malloc(nspans * sizeof(*spans->points));
if (!spans->points)
- return FALSE;
- spans->widths = malloc(nspans * sizeof (*spans->widths));
- if (!spans->widths)
- {
- free(spans->points);
- return FALSE;
+ return FALSE;
+ spans->widths = malloc(nspans * sizeof(*spans->widths));
+ if (!spans->widths) {
+ free(spans->points);
+ return FALSE;
}
return TRUE;
}
@@ -72,399 +71,355 @@ InitSpans(Spans *spans, size_t nspans)
*/
typedef struct _SpanData {
- SpanGroup fgGroup, bgGroup;
+ SpanGroup fgGroup, bgGroup;
} SpanDataRec, *SpanDataPtr;
static void
-AppendSpanGroup(GCPtr pGC, unsigned long pixel, Spans *spanPtr, SpanDataPtr spanData)
+AppendSpanGroup(GCPtr pGC, unsigned long pixel, Spans * spanPtr,
+ SpanDataPtr spanData)
{
SpanGroup *group, *othergroup = NULL;
- if (pixel == pGC->fgPixel)
- {
- group = &spanData->fgGroup;
- if (pGC->lineStyle == LineDoubleDash)
- othergroup = &spanData->bgGroup;
+
+ if (pixel == pGC->fgPixel) {
+ group = &spanData->fgGroup;
+ if (pGC->lineStyle == LineDoubleDash)
+ othergroup = &spanData->bgGroup;
}
- else
- {
- group = &spanData->bgGroup;
- othergroup = &spanData->fgGroup;
+ else {
+ group = &spanData->bgGroup;
+ othergroup = &spanData->fgGroup;
}
- miAppendSpans (group, othergroup, spanPtr);
+ miAppendSpans(group, othergroup, spanPtr);
}
-
static void miLineArc(DrawablePtr pDraw, GCPtr pGC,
- unsigned long pixel, SpanDataPtr spanData,
- LineFacePtr leftFace,
- LineFacePtr rightFace,
- double xorg, double yorg, Bool isInt);
-
+ unsigned long pixel, SpanDataPtr spanData,
+ LineFacePtr leftFace,
+ LineFacePtr rightFace,
+ double xorg, double yorg, Bool isInt);
/*
* spans-based polygon filler
*/
static void
-fillSpans(DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel, Spans *spans, SpanDataPtr spanData)
+fillSpans(DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel, Spans * spans,
+ SpanDataPtr spanData)
{
- if (!spanData)
- {
- ChangeGCVal oldPixel, tmpPixel;
- oldPixel.val = pGC->fgPixel;
- if (pixel != oldPixel.val)
- {
- tmpPixel.val = (XID)pixel;
- ChangeGC (NullClient, pGC, GCForeground, &tmpPixel);
- ValidateGC (pDrawable, pGC);
- }
- (*pGC->ops->FillSpans) (pDrawable, pGC, spans->count, spans->points, spans->widths, TRUE);
- free(spans->widths);
- free(spans->points);
- if (pixel != oldPixel.val)
- {
- ChangeGC (NullClient, pGC, GCForeground, &oldPixel);
- ValidateGC (pDrawable, pGC);
- }
+ if (!spanData) {
+ ChangeGCVal oldPixel, tmpPixel;
+
+ oldPixel.val = pGC->fgPixel;
+ if (pixel != oldPixel.val) {
+ tmpPixel.val = (XID) pixel;
+ ChangeGC(NullClient, pGC, GCForeground, &tmpPixel);
+ ValidateGC(pDrawable, pGC);
+ }
+ (*pGC->ops->FillSpans) (pDrawable, pGC, spans->count, spans->points,
+ spans->widths, TRUE);
+ free(spans->widths);
+ free(spans->points);
+ if (pixel != oldPixel.val) {
+ ChangeGC(NullClient, pGC, GCForeground, &oldPixel);
+ ValidateGC(pDrawable, pGC);
+ }
}
else
- AppendSpanGroup (pGC, pixel, spans, spanData);
+ AppendSpanGroup(pGC, pixel, spans, spanData);
}
static void
-miFillPolyHelper (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
- SpanDataPtr spanData, int y, int overall_height,
- PolyEdgePtr left, PolyEdgePtr right,
- int left_count, int right_count)
+miFillPolyHelper(DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
+ SpanDataPtr spanData, int y, int overall_height,
+ PolyEdgePtr left, PolyEdgePtr right,
+ int left_count, int right_count)
{
int left_x = 0, left_e = 0;
- int left_stepx = 0;
- int left_signdx = 0;
- int left_dy = 0, left_dx = 0;
+ int left_stepx = 0;
+ int left_signdx = 0;
+ int left_dy = 0, left_dx = 0;
int right_x = 0, right_e = 0;
- int right_stepx = 0;
- int right_signdx = 0;
- int right_dy = 0, right_dx = 0;
+ int right_stepx = 0;
+ int right_signdx = 0;
+ int right_dy = 0, right_dx = 0;
- int height = 0;
- int left_height = 0, right_height = 0;
+ int height = 0;
+ int left_height = 0, right_height = 0;
DDXPointPtr ppt;
- int *pwidth;
- int xorg;
- Spans spanRec;
+ int *pwidth;
+ int xorg;
+ Spans spanRec;
if (!InitSpans(&spanRec, overall_height))
- return;
+ return;
ppt = spanRec.points;
pwidth = spanRec.widths;
xorg = 0;
- if (pGC->miTranslate)
- {
- y += pDrawable->y;
- xorg = pDrawable->x;
- }
- while ((left_count || left_height) &&
- (right_count || right_height))
- {
- if (!left_height && left_count)
- {
- left_height = left->height;
- left_x = left->x;
- left_stepx = left->stepx;
- left_signdx = left->signdx;
- left_e = left->e;
- left_dy = left->dy;
- left_dx = left->dx;
- --left_count;
- ++left;
- }
-
- if (!right_height && right_count)
- {
- right_height = right->height;
- right_x = right->x;
- right_stepx = right->stepx;
- right_signdx = right->signdx;
- right_e = right->e;
- right_dy = right->dy;
- right_dx = right->dx;
- --right_count;
- ++right;
- }
-
- height = left_height;
- if (height > right_height)
- height = right_height;
-
- left_height -= height;
- right_height -= height;
-
- while (--height >= 0)
- {
- if (right_x >= left_x)
- {
- ppt->y = y;
- ppt->x = left_x + xorg;
- ppt++;
- *pwidth++ = right_x - left_x + 1;
- }
- y++;
-
- left_x += left_stepx;
- left_e += left_dx;
- if (left_e > 0)
- {
- left_x += left_signdx;
- left_e -= left_dy;
- }
-
- right_x += right_stepx;
- right_e += right_dx;
- if (right_e > 0)
- {
- right_x += right_signdx;
- right_e -= right_dy;
- }
- }
+ if (pGC->miTranslate) {
+ y += pDrawable->y;
+ xorg = pDrawable->x;
+ }
+ while ((left_count || left_height) && (right_count || right_height)) {
+ if (!left_height && left_count) {
+ left_height = left->height;
+ left_x = left->x;
+ left_stepx = left->stepx;
+ left_signdx = left->signdx;
+ left_e = left->e;
+ left_dy = left->dy;
+ left_dx = left->dx;
+ --left_count;
+ ++left;
+ }
+
+ if (!right_height && right_count) {
+ right_height = right->height;
+ right_x = right->x;
+ right_stepx = right->stepx;
+ right_signdx = right->signdx;
+ right_e = right->e;
+ right_dy = right->dy;
+ right_dx = right->dx;
+ --right_count;
+ ++right;
+ }
+
+ height = left_height;
+ if (height > right_height)
+ height = right_height;
+
+ left_height -= height;
+ right_height -= height;
+
+ while (--height >= 0) {
+ if (right_x >= left_x) {
+ ppt->y = y;
+ ppt->x = left_x + xorg;
+ ppt++;
+ *pwidth++ = right_x - left_x + 1;
+ }
+ y++;
+
+ left_x += left_stepx;
+ left_e += left_dx;
+ if (left_e > 0) {
+ left_x += left_signdx;
+ left_e -= left_dy;
+ }
+
+ right_x += right_stepx;
+ right_e += right_dx;
+ if (right_e > 0) {
+ right_x += right_signdx;
+ right_e -= right_dy;
+ }
+ }
}
spanRec.count = ppt - spanRec.points;
- fillSpans (pDrawable, pGC, pixel, &spanRec, spanData);
+ fillSpans(pDrawable, pGC, pixel, &spanRec, spanData);
}
static void
-miFillRectPolyHelper (
- DrawablePtr pDrawable,
- GCPtr pGC,
- unsigned long pixel,
- SpanDataPtr spanData,
- int x,
- int y,
- int w,
- int h)
+miFillRectPolyHelper(DrawablePtr pDrawable,
+ GCPtr pGC,
+ unsigned long pixel,
+ SpanDataPtr spanData, int x, int y, int w, int h)
{
DDXPointPtr ppt;
- int *pwidth;
- ChangeGCVal oldPixel, tmpPixel;
- Spans spanRec;
- xRectangle rect;
-
- if (!spanData)
- {
- rect.x = x;
- rect.y = y;
- rect.width = w;
- rect.height = h;
- oldPixel.val = pGC->fgPixel;
- if (pixel != oldPixel.val)
- {
- tmpPixel.val = (XID)pixel;
- ChangeGC (NullClient, pGC, GCForeground, &tmpPixel);
- ValidateGC (pDrawable, pGC);
- }
- (*pGC->ops->PolyFillRect) (pDrawable, pGC, 1, &rect);
- if (pixel != oldPixel.val)
- {
- ChangeGC (NullClient, pGC, GCForeground, &oldPixel);
- ValidateGC (pDrawable, pGC);
- }
- }
- else
- {
- if (!InitSpans(&spanRec, h))
- return;
- ppt = spanRec.points;
- pwidth = spanRec.widths;
-
- if (pGC->miTranslate)
- {
- y += pDrawable->y;
- x += pDrawable->x;
- }
- while (h--)
- {
- ppt->x = x;
- ppt->y = y;
- ppt++;
- *pwidth++ = w;
- y++;
- }
- spanRec.count = ppt - spanRec.points;
- AppendSpanGroup (pGC, pixel, &spanRec, spanData);
+ int *pwidth;
+ ChangeGCVal oldPixel, tmpPixel;
+ Spans spanRec;
+ xRectangle rect;
+
+ if (!spanData) {
+ rect.x = x;
+ rect.y = y;
+ rect.width = w;
+ rect.height = h;
+ oldPixel.val = pGC->fgPixel;
+ if (pixel != oldPixel.val) {
+ tmpPixel.val = (XID) pixel;
+ ChangeGC(NullClient, pGC, GCForeground, &tmpPixel);
+ ValidateGC(pDrawable, pGC);
+ }
+ (*pGC->ops->PolyFillRect) (pDrawable, pGC, 1, &rect);
+ if (pixel != oldPixel.val) {
+ ChangeGC(NullClient, pGC, GCForeground, &oldPixel);
+ ValidateGC(pDrawable, pGC);
+ }
+ }
+ else {
+ if (!InitSpans(&spanRec, h))
+ return;
+ ppt = spanRec.points;
+ pwidth = spanRec.widths;
+
+ if (pGC->miTranslate) {
+ y += pDrawable->y;
+ x += pDrawable->x;
+ }
+ while (h--) {
+ ppt->x = x;
+ ppt->y = y;
+ ppt++;
+ *pwidth++ = w;
+ y++;
+ }
+ spanRec.count = ppt - spanRec.points;
+ AppendSpanGroup(pGC, pixel, &spanRec, spanData);
}
}
/* static */ int
-miPolyBuildEdge (
- double x0,
- double y0,
- double k, /* x0 * dy - y0 * dx */
- int dx,
- int dy,
- int xi,
- int yi,
- int left,
- PolyEdgePtr edge)
+miPolyBuildEdge(double x0, double y0, double k, /* x0 * dy - y0 * dx */
+ int dx, int dy, int xi, int yi, int left, PolyEdgePtr edge)
{
- int x, y, e;
- int xady;
+ int x, y, e;
+ int xady;
- if (dy < 0)
- {
- dy = -dy;
- dx = -dx;
- k = -k;
+ if (dy < 0) {
+ dy = -dy;
+ dx = -dx;
+ k = -k;
}
#ifdef NOTDEF
{
- double realk, kerror;
- realk = x0 * dy - y0 * dx;
- kerror = fabs (realk - k);
- if (kerror > .1)
- printf ("realk: %g k: %g\n", realk, k);
+ double realk, kerror;
+
+ realk = x0 * dy - y0 * dx;
+ kerror = fabs(realk - k);
+ if (kerror > .1)
+ printf("realk: %g k: %g\n", realk, k);
}
#endif
- y = ICEIL (y0);
- xady = ICEIL (k) + y * dx;
+ y = ICEIL(y0);
+ xady = ICEIL(k) + y * dx;
if (xady <= 0)
- x = - (-xady / dy) - 1;
+ x = -(-xady / dy) - 1;
else
- x = (xady - 1) / dy;
+ x = (xady - 1) / dy;
e = xady - x * dy;
- if (dx >= 0)
- {
- edge->signdx = 1;
- edge->stepx = dx / dy;
- edge->dx = dx % dy;
+ if (dx >= 0) {
+ edge->signdx = 1;
+ edge->stepx = dx / dy;
+ edge->dx = dx % dy;
}
- else
- {
- edge->signdx = -1;
- edge->stepx = - (-dx / dy);
- edge->dx = -dx % dy;
- e = dy - e + 1;
+ else {
+ edge->signdx = -1;
+ edge->stepx = -(-dx / dy);
+ edge->dx = -dx % dy;
+ e = dy - e + 1;
}
edge->dy = dy;
edge->x = x + left + xi;
- edge->e = e - dy; /* bias to compare against 0 instead of dy */
+ edge->e = e - dy; /* bias to compare against 0 instead of dy */
return y + yi;
}
#define StepAround(v, incr, max) (((v) + (incr) < 0) ? (max - 1) : ((v) + (incr) == max) ? 0 : ((v) + (incr)))
/* static */ int
-miPolyBuildPoly (
- PolyVertexPtr vertices,
- PolySlopePtr slopes,
- int count,
- int xi,
- int yi,
- PolyEdgePtr left,
- PolyEdgePtr right,
- int *pnleft,
- int *pnright,
- int *h)
+miPolyBuildPoly(PolyVertexPtr vertices,
+ PolySlopePtr slopes,
+ int count,
+ int xi,
+ int yi,
+ PolyEdgePtr left,
+ PolyEdgePtr right, int *pnleft, int *pnright, int *h)
{
- int top, bottom;
- double miny, maxy;
- int i;
- int j;
- int clockwise;
- int slopeoff;
- int s;
- int nright, nleft;
- int y, lasty = 0, bottomy, topy = 0;
+ int top, bottom;
+ double miny, maxy;
+ int i;
+ int j;
+ int clockwise;
+ int slopeoff;
+ int s;
+ int nright, nleft;
+ int y, lasty = 0, bottomy, topy = 0;
/* find the top of the polygon */
maxy = miny = vertices[0].y;
bottom = top = 0;
- for (i = 1; i < count; i++)
- {
- if (vertices[i].y < miny)
- {
- top = i;
- miny = vertices[i].y;
- }
- if (vertices[i].y >= maxy)
- {
- bottom = i;
- maxy = vertices[i].y;
- }
+ for (i = 1; i < count; i++) {
+ if (vertices[i].y < miny) {
+ top = i;
+ miny = vertices[i].y;
+ }
+ if (vertices[i].y >= maxy) {
+ bottom = i;
+ maxy = vertices[i].y;
+ }
}
clockwise = 1;
slopeoff = 0;
i = top;
- j = StepAround (top, -1, count);
+ j = StepAround(top, -1, count);
- if ((int64_t)slopes[j].dy * slopes[i].dx > (int64_t)slopes[i].dy * slopes[j].dx)
- {
- clockwise = -1;
- slopeoff = -1;
+ if ((int64_t) slopes[j].dy * slopes[i].dx >
+ (int64_t) slopes[i].dy * slopes[j].dx) {
+ clockwise = -1;
+ slopeoff = -1;
}
- bottomy = ICEIL (maxy) + yi;
+ bottomy = ICEIL(maxy) + yi;
nright = 0;
- s = StepAround (top, slopeoff, count);
+ s = StepAround(top, slopeoff, count);
i = top;
- while (i != bottom)
- {
- if (slopes[s].dy != 0)
- {
- y = miPolyBuildEdge (vertices[i].x, vertices[i].y,
- slopes[s].k,
- slopes[s].dx, slopes[s].dy,
- xi, yi, 0,
- &right[nright]);
- if (nright != 0)
- right[nright-1].height = y - lasty;
- else
- topy = y;
- nright++;
- lasty = y;
- }
-
- i = StepAround (i, clockwise, count);
- s = StepAround (s, clockwise, count);
+ while (i != bottom) {
+ if (slopes[s].dy != 0) {
+ y = miPolyBuildEdge(vertices[i].x, vertices[i].y,
+ slopes[s].k,
+ slopes[s].dx, slopes[s].dy,
+ xi, yi, 0, &right[nright]);
+ if (nright != 0)
+ right[nright - 1].height = y - lasty;
+ else
+ topy = y;
+ nright++;
+ lasty = y;
+ }
+
+ i = StepAround(i, clockwise, count);
+ s = StepAround(s, clockwise, count);
}
if (nright != 0)
- right[nright-1].height = bottomy - lasty;
+ right[nright - 1].height = bottomy - lasty;
if (slopeoff == 0)
- slopeoff = -1;
+ slopeoff = -1;
else
- slopeoff = 0;
+ slopeoff = 0;
nleft = 0;
- s = StepAround (top, slopeoff, count);
+ s = StepAround(top, slopeoff, count);
i = top;
- while (i != bottom)
- {
- if (slopes[s].dy != 0)
- {
- y = miPolyBuildEdge (vertices[i].x, vertices[i].y,
- slopes[s].k,
- slopes[s].dx, slopes[s].dy, xi, yi, 1,
- &left[nleft]);
-
- if (nleft != 0)
- left[nleft-1].height = y - lasty;
- nleft++;
- lasty = y;
- }
- i = StepAround (i, -clockwise, count);
- s = StepAround (s, -clockwise, count);
+ while (i != bottom) {
+ if (slopes[s].dy != 0) {
+ y = miPolyBuildEdge(vertices[i].x, vertices[i].y,
+ slopes[s].k,
+ slopes[s].dx, slopes[s].dy, xi, yi, 1,
+ &left[nleft]);
+
+ if (nleft != 0)
+ left[nleft - 1].height = y - lasty;
+ nleft++;
+ lasty = y;
+ }
+ i = StepAround(i, -clockwise, count);
+ s = StepAround(s, -clockwise, count);
}
if (nleft != 0)
- left[nleft-1].height = bottomy - lasty;
+ left[nleft - 1].height = bottomy - lasty;
*pnleft = nleft;
*pnright = nright;
*h = bottomy - topy;
@@ -472,198 +427,177 @@ miPolyBuildPoly (
}
static void
-miLineOnePoint (
- DrawablePtr pDrawable,
- GCPtr pGC,
- unsigned long pixel,
- SpanDataPtr spanData,
- int x,
- int y)
+miLineOnePoint(DrawablePtr pDrawable,
+ GCPtr pGC,
+ unsigned long pixel, SpanDataPtr spanData, int x, int y)
{
DDXPointRec pt;
- int wid;
- unsigned long oldPixel;
-
- MILINESETPIXEL (pDrawable, pGC, pixel, oldPixel);
- if (pGC->fillStyle == FillSolid)
- {
- pt.x = x;
- pt.y = y;
- (*pGC->ops->PolyPoint) (pDrawable, pGC, CoordModeOrigin, 1, &pt);
- }
- else
- {
- wid = 1;
- if (pGC->miTranslate)
- {
- x += pDrawable->x;
- y += pDrawable->y;
- }
- pt.x = x;
- pt.y = y;
- (*pGC->ops->FillSpans) (pDrawable, pGC, 1, &pt, &wid, TRUE);
- }
- MILINERESETPIXEL (pDrawable, pGC, pixel, oldPixel);
+ int wid;
+ unsigned long oldPixel;
+
+ MILINESETPIXEL(pDrawable, pGC, pixel, oldPixel);
+ if (pGC->fillStyle == FillSolid) {
+ pt.x = x;
+ pt.y = y;
+ (*pGC->ops->PolyPoint) (pDrawable, pGC, CoordModeOrigin, 1, &pt);
+ }
+ else {
+ wid = 1;
+ if (pGC->miTranslate) {
+ x += pDrawable->x;
+ y += pDrawable->y;
+ }
+ pt.x = x;
+ pt.y = y;
+ (*pGC->ops->FillSpans) (pDrawable, pGC, 1, &pt, &wid, TRUE);
+ }
+ MILINERESETPIXEL(pDrawable, pGC, pixel, oldPixel);
}
static void
-miLineJoin (
- DrawablePtr pDrawable,
- GCPtr pGC,
- unsigned long pixel,
- SpanDataPtr spanData,
- LineFacePtr pLeft,
- LineFacePtr pRight)
+miLineJoin(DrawablePtr pDrawable,
+ GCPtr pGC,
+ unsigned long pixel,
+ SpanDataPtr spanData, LineFacePtr pLeft, LineFacePtr pRight)
{
- double mx = 0, my = 0;
- double denom = 0.0;
- PolyVertexRec vertices[4];
- PolySlopeRec slopes[4];
- int edgecount;
- PolyEdgeRec left[4], right[4];
- int nleft, nright;
- int y, height;
- int swapslopes;
- int joinStyle = pGC->joinStyle;
- int lw = pGC->lineWidth;
+ double mx = 0, my = 0;
+ double denom = 0.0;
+ PolyVertexRec vertices[4];
+ PolySlopeRec slopes[4];
+ int edgecount;
+ PolyEdgeRec left[4], right[4];
+ int nleft, nright;
+ int y, height;
+ int swapslopes;
+ int joinStyle = pGC->joinStyle;
+ int lw = pGC->lineWidth;
if (lw == 1 && !spanData) {
- /* See if one of the lines will draw the joining pixel */
- if (pLeft->dx > 0 || (pLeft->dx == 0 && pLeft->dy > 0))
- return;
- if (pRight->dx > 0 || (pRight->dx == 0 && pRight->dy > 0))
- return;
- if (joinStyle != JoinRound) {
- denom = - pLeft->dx * (double)pRight->dy + pRight->dx * (double)pLeft->dy;
- if (denom == 0)
- return; /* no join to draw */
- }
- if (joinStyle != JoinMiter) {
- miLineOnePoint (pDrawable, pGC, pixel, spanData, pLeft->x, pLeft->y);
- return;
- }
- } else {
- if (joinStyle == JoinRound)
- {
- miLineArc(pDrawable, pGC, pixel, spanData,
- pLeft, pRight,
- (double)0.0, (double)0.0, TRUE);
- return;
- }
- denom = - pLeft->dx * (double)pRight->dy + pRight->dx * (double)pLeft->dy;
- if (denom == 0.0)
- return; /* no join to draw */
+ /* See if one of the lines will draw the joining pixel */
+ if (pLeft->dx > 0 || (pLeft->dx == 0 && pLeft->dy > 0))
+ return;
+ if (pRight->dx > 0 || (pRight->dx == 0 && pRight->dy > 0))
+ return;
+ if (joinStyle != JoinRound) {
+ denom =
+ -pLeft->dx * (double) pRight->dy +
+ pRight->dx * (double) pLeft->dy;
+ if (denom == 0)
+ return; /* no join to draw */
+ }
+ if (joinStyle != JoinMiter) {
+ miLineOnePoint(pDrawable, pGC, pixel, spanData, pLeft->x, pLeft->y);
+ return;
+ }
+ }
+ else {
+ if (joinStyle == JoinRound) {
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ pLeft, pRight, (double) 0.0, (double) 0.0, TRUE);
+ return;
+ }
+ denom =
+ -pLeft->dx * (double) pRight->dy + pRight->dx * (double) pLeft->dy;
+ if (denom == 0.0)
+ return; /* no join to draw */
}
swapslopes = 0;
- if (denom > 0)
- {
- pLeft->xa = -pLeft->xa;
- pLeft->ya = -pLeft->ya;
- pLeft->dx = -pLeft->dx;
- pLeft->dy = -pLeft->dy;
+ if (denom > 0) {
+ pLeft->xa = -pLeft->xa;
+ pLeft->ya = -pLeft->ya;
+ pLeft->dx = -pLeft->dx;
+ pLeft->dy = -pLeft->dy;
}
- else
- {
- swapslopes = 1;
- pRight->xa = -pRight->xa;
- pRight->ya = -pRight->ya;
- pRight->dx = -pRight->dx;
- pRight->dy = -pRight->dy;
+ else {
+ swapslopes = 1;
+ pRight->xa = -pRight->xa;
+ pRight->ya = -pRight->ya;
+ pRight->dx = -pRight->dx;
+ pRight->dy = -pRight->dy;
}
vertices[0].x = pRight->xa;
vertices[0].y = pRight->ya;
slopes[0].dx = -pRight->dy;
- slopes[0].dy = pRight->dx;
+ slopes[0].dy = pRight->dx;
slopes[0].k = 0;
vertices[1].x = 0;
vertices[1].y = 0;
- slopes[1].dx = pLeft->dy;
+ slopes[1].dx = pLeft->dy;
slopes[1].dy = -pLeft->dx;
slopes[1].k = 0;
vertices[2].x = pLeft->xa;
vertices[2].y = pLeft->ya;
- if (joinStyle == JoinMiter)
- {
- my = (pLeft->dy * (pRight->xa * pRight->dy - pRight->ya * pRight->dx) -
- pRight->dy * (pLeft->xa * pLeft->dy - pLeft->ya * pLeft->dx )) /
- denom;
- if (pLeft->dy != 0)
- {
- mx = pLeft->xa + (my - pLeft->ya) *
- (double) pLeft->dx / (double) pLeft->dy;
- }
- else
- {
- mx = pRight->xa + (my - pRight->ya) *
- (double) pRight->dx / (double) pRight->dy;
- }
- /* check miter limit */
- if ((mx * mx + my * my) * 4 > SQSECANT * lw * lw)
- joinStyle = JoinBevel;
- }
-
- if (joinStyle == JoinMiter)
- {
- slopes[2].dx = pLeft->dx;
- slopes[2].dy = pLeft->dy;
- slopes[2].k = pLeft->k;
- if (swapslopes)
- {
- slopes[2].dx = -slopes[2].dx;
- slopes[2].dy = -slopes[2].dy;
- slopes[2].k = -slopes[2].k;
- }
- vertices[3].x = mx;
- vertices[3].y = my;
- slopes[3].dx = pRight->dx;
- slopes[3].dy = pRight->dy;
- slopes[3].k = pRight->k;
- if (swapslopes)
- {
- slopes[3].dx = -slopes[3].dx;
- slopes[3].dy = -slopes[3].dy;
- slopes[3].k = -slopes[3].k;
- }
- edgecount = 4;
- }
- else
- {
- double scale, dx, dy, adx, ady;
-
- adx = dx = pRight->xa - pLeft->xa;
- ady = dy = pRight->ya - pLeft->ya;
- if (adx < 0)
- adx = -adx;
- if (ady < 0)
- ady = -ady;
- scale = ady;
- if (adx > ady)
- scale = adx;
- slopes[2].dx = (dx * 65536) / scale;
- slopes[2].dy = (dy * 65536) / scale;
- slopes[2].k = ((pLeft->xa + pRight->xa) * slopes[2].dy -
- (pLeft->ya + pRight->ya) * slopes[2].dx) / 2.0;
- edgecount = 3;
- }
-
- y = miPolyBuildPoly (vertices, slopes, edgecount, pLeft->x, pLeft->y,
- left, right, &nleft, &nright, &height);
- miFillPolyHelper (pDrawable, pGC, pixel, spanData, y, height, left, right, nleft, nright);
+ if (joinStyle == JoinMiter) {
+ my = (pLeft->dy * (pRight->xa * pRight->dy - pRight->ya * pRight->dx) -
+ pRight->dy * (pLeft->xa * pLeft->dy - pLeft->ya * pLeft->dx)) /
+ denom;
+ if (pLeft->dy != 0) {
+ mx = pLeft->xa + (my - pLeft->ya) *
+ (double) pLeft->dx / (double) pLeft->dy;
+ }
+ else {
+ mx = pRight->xa + (my - pRight->ya) *
+ (double) pRight->dx / (double) pRight->dy;
+ }
+ /* check miter limit */
+ if ((mx * mx + my * my) * 4 > SQSECANT * lw * lw)
+ joinStyle = JoinBevel;
+ }
+
+ if (joinStyle == JoinMiter) {
+ slopes[2].dx = pLeft->dx;
+ slopes[2].dy = pLeft->dy;
+ slopes[2].k = pLeft->k;
+ if (swapslopes) {
+ slopes[2].dx = -slopes[2].dx;
+ slopes[2].dy = -slopes[2].dy;
+ slopes[2].k = -slopes[2].k;
+ }
+ vertices[3].x = mx;
+ vertices[3].y = my;
+ slopes[3].dx = pRight->dx;
+ slopes[3].dy = pRight->dy;
+ slopes[3].k = pRight->k;
+ if (swapslopes) {
+ slopes[3].dx = -slopes[3].dx;
+ slopes[3].dy = -slopes[3].dy;
+ slopes[3].k = -slopes[3].k;
+ }
+ edgecount = 4;
+ }
+ else {
+ double scale, dx, dy, adx, ady;
+
+ adx = dx = pRight->xa - pLeft->xa;
+ ady = dy = pRight->ya - pLeft->ya;
+ if (adx < 0)
+ adx = -adx;
+ if (ady < 0)
+ ady = -ady;
+ scale = ady;
+ if (adx > ady)
+ scale = adx;
+ slopes[2].dx = (dx * 65536) / scale;
+ slopes[2].dy = (dy * 65536) / scale;
+ slopes[2].k = ((pLeft->xa + pRight->xa) * slopes[2].dy -
+ (pLeft->ya + pRight->ya) * slopes[2].dx) / 2.0;
+ edgecount = 3;
+ }
+
+ y = miPolyBuildPoly(vertices, slopes, edgecount, pLeft->x, pLeft->y,
+ left, right, &nleft, &nright, &height);
+ miFillPolyHelper(pDrawable, pGC, pixel, spanData, y, height, left, right,
+ nleft, nright);
}
static int
-miLineArcI (
- DrawablePtr pDraw,
- GCPtr pGC,
- int xorg,
- int yorg,
- DDXPointPtr points,
- int *widths)
+miLineArcI(DrawablePtr pDraw,
+ GCPtr pGC, int xorg, int yorg, DDXPointPtr points, int *widths)
{
DDXPointPtr tpts, bpts;
int *twids, *bwids;
@@ -671,51 +605,46 @@ miLineArcI (
tpts = points;
twids = widths;
- if (pGC->miTranslate)
- {
- xorg += pDraw->x;
- yorg += pDraw->y;
+ if (pGC->miTranslate) {
+ xorg += pDraw->x;
+ yorg += pDraw->y;
}
slw = pGC->lineWidth;
- if (slw == 1)
- {
- tpts->x = xorg;
- tpts->y = yorg;
- *twids = 1;
- return 1;
+ if (slw == 1) {
+ tpts->x = xorg;
+ tpts->y = yorg;
+ *twids = 1;
+ return 1;
}
bpts = tpts + slw;
bwids = twids + slw;
y = (slw >> 1) + 1;
if (slw & 1)
- e = - ((y << 2) + 3);
+ e = -((y << 2) + 3);
else
- e = - (y << 3);
+ e = -(y << 3);
ex = -4;
x = 0;
- while (y)
- {
- e += (y << 3) - 4;
- while (e >= 0)
- {
- x++;
- e += (ex = -((x << 3) + 4));
- }
- y--;
- slw = (x << 1) + 1;
- if ((e == ex) && (slw > 1))
- slw--;
- tpts->x = xorg - x;
- tpts->y = yorg - y;
- tpts++;
- *twids++ = slw;
- if ((y != 0) && ((slw > 1) || (e != ex)))
- {
- bpts--;
- bpts->x = xorg - x;
- bpts->y = yorg + y;
- *--bwids = slw;
- }
+ while (y) {
+ e += (y << 3) - 4;
+ while (e >= 0) {
+ x++;
+ e += (ex = -((x << 3) + 4));
+ }
+ y--;
+ slw = (x << 1) + 1;
+ if ((e == ex) && (slw > 1))
+ slw--;
+ tpts->x = xorg - x;
+ tpts->y = yorg - y;
+ tpts++;
+ *twids++ = slw;
+ if ((y != 0) && ((slw > 1) || (e != ex))) {
+ bpts--;
+ bpts->x = xorg - x;
+ bpts->y = yorg + y;
+ *--bwids = slw;
+ }
}
return pGC->lineWidth;
}
@@ -744,19 +673,15 @@ miLineArcI (
}
static int
-miLineArcD (
- DrawablePtr pDraw,
- GCPtr pGC,
- double xorg,
- double yorg,
- DDXPointPtr points,
- int *widths,
- PolyEdgePtr edge1,
- int edgey1,
- Bool edgeleft1,
- PolyEdgePtr edge2,
- int edgey2,
- Bool edgeleft2)
+miLineArcD(DrawablePtr pDraw,
+ GCPtr pGC,
+ double xorg,
+ double yorg,
+ DDXPointPtr points,
+ int *widths,
+ PolyEdgePtr edge1,
+ int edgey1,
+ Bool edgeleft1, PolyEdgePtr edge2, int edgey2, Bool edgeleft2)
{
DDXPointPtr pts;
int *wids;
@@ -770,226 +695,204 @@ miLineArcD (
wids = widths;
xbase = floor(xorg);
x0 = xorg - xbase;
- ybase = ICEIL (yorg);
+ ybase = ICEIL(yorg);
y0 = yorg - ybase;
- if (pGC->miTranslate)
- {
- xbase += pDraw->x;
- ybase += pDraw->y;
- edge1->x += pDraw->x;
- edge2->x += pDraw->x;
- edgey1 += pDraw->y;
- edgey2 += pDraw->y;
+ if (pGC->miTranslate) {
+ xbase += pDraw->x;
+ ybase += pDraw->y;
+ edge1->x += pDraw->x;
+ edge2->x += pDraw->x;
+ edgey1 += pDraw->y;
+ edgey2 += pDraw->y;
}
xlk = x0 + x0 + 1.0;
xrk = x0 + x0 - 1.0;
yk = y0 + y0 - 1.0;
- radius = ((double)pGC->lineWidth) / 2.0;
+ radius = ((double) pGC->lineWidth) / 2.0;
y = floor(radius - y0 + 1.0);
ybase -= y;
ymin = ybase;
ymax = 65536;
edge1IsMin = FALSE;
ymin1 = edgey1;
- if (edge1->dy >= 0)
- {
- if (!edge1->dy)
- {
- if (edgeleft1)
- edge1IsMin = TRUE;
- else
- ymax = edgey1;
- edgey1 = 65536;
- }
- else
- {
- if ((edge1->signdx < 0) == edgeleft1)
- edge1IsMin = TRUE;
- }
+ if (edge1->dy >= 0) {
+ if (!edge1->dy) {
+ if (edgeleft1)
+ edge1IsMin = TRUE;
+ else
+ ymax = edgey1;
+ edgey1 = 65536;
+ }
+ else {
+ if ((edge1->signdx < 0) == edgeleft1)
+ edge1IsMin = TRUE;
+ }
}
edge2IsMin = FALSE;
ymin2 = edgey2;
- if (edge2->dy >= 0)
- {
- if (!edge2->dy)
- {
- if (edgeleft2)
- edge2IsMin = TRUE;
- else
- ymax = edgey2;
- edgey2 = 65536;
- }
- else
- {
- if ((edge2->signdx < 0) == edgeleft2)
- edge2IsMin = TRUE;
- }
- }
- if (edge1IsMin)
- {
- ymin = ymin1;
- if (edge2IsMin && ymin1 > ymin2)
- ymin = ymin2;
- } else if (edge2IsMin)
- ymin = ymin2;
+ if (edge2->dy >= 0) {
+ if (!edge2->dy) {
+ if (edgeleft2)
+ edge2IsMin = TRUE;
+ else
+ ymax = edgey2;
+ edgey2 = 65536;
+ }
+ else {
+ if ((edge2->signdx < 0) == edgeleft2)
+ edge2IsMin = TRUE;
+ }
+ }
+ if (edge1IsMin) {
+ ymin = ymin1;
+ if (edge2IsMin && ymin1 > ymin2)
+ ymin = ymin2;
+ }
+ else if (edge2IsMin)
+ ymin = ymin2;
el = radius * radius - ((y + y0) * (y + y0)) - (x0 * x0);
er = el + xrk;
xl = 1;
xr = 0;
- if (x0 < 0.5)
- {
- xl = 0;
- el -= xlk;
+ if (x0 < 0.5) {
+ xl = 0;
+ el -= xlk;
}
boty = (y0 < -0.5) ? 1 : 0;
if (ybase + y - boty > ymax)
- boty = ymax - ybase - y;
- while (y > boty)
- {
- k = (y << 1) + yk;
- er += k;
- while (er > 0.0)
- {
- xr++;
- er += xrk - (xr << 1);
- }
- el += k;
- while (el >= 0.0)
- {
- xl--;
- el += (xl << 1) - xlk;
- }
- y--;
- ybase++;
- if (ybase < ymin)
- continue;
- xcl = xl + xbase;
- xcr = xr + xbase;
- CLIPSTEPEDGE(edgey1, edge1, edgeleft1);
- CLIPSTEPEDGE(edgey2, edge2, edgeleft2);
- if (xcr >= xcl)
- {
- pts->x = xcl;
- pts->y = ybase;
- pts++;
- *wids++ = xcr - xcl + 1;
- }
+ boty = ymax - ybase - y;
+ while (y > boty) {
+ k = (y << 1) + yk;
+ er += k;
+ while (er > 0.0) {
+ xr++;
+ er += xrk - (xr << 1);
+ }
+ el += k;
+ while (el >= 0.0) {
+ xl--;
+ el += (xl << 1) - xlk;
+ }
+ y--;
+ ybase++;
+ if (ybase < ymin)
+ continue;
+ xcl = xl + xbase;
+ xcr = xr + xbase;
+ CLIPSTEPEDGE(edgey1, edge1, edgeleft1);
+ CLIPSTEPEDGE(edgey2, edge2, edgeleft2);
+ if (xcr >= xcl) {
+ pts->x = xcl;
+ pts->y = ybase;
+ pts++;
+ *wids++ = xcr - xcl + 1;
+ }
}
er = xrk - (xr << 1) - er;
el = (xl << 1) - xlk - el;
boty = floor(-y0 - radius + 1.0);
if (ybase + y - boty > ymax)
- boty = ymax - ybase - y;
- while (y > boty)
- {
- k = (y << 1) + yk;
- er -= k;
- while ((er >= 0.0) && (xr >= 0))
- {
- xr--;
- er += xrk - (xr << 1);
- }
- el -= k;
- while ((el > 0.0) && (xl <= 0))
- {
- xl++;
- el += (xl << 1) - xlk;
- }
- y--;
- ybase++;
- if (ybase < ymin)
- continue;
- xcl = xl + xbase;
- xcr = xr + xbase;
- CLIPSTEPEDGE(edgey1, edge1, edgeleft1);
- CLIPSTEPEDGE(edgey2, edge2, edgeleft2);
- if (xcr >= xcl)
- {
- pts->x = xcl;
- pts->y = ybase;
- pts++;
- *wids++ = xcr - xcl + 1;
- }
+ boty = ymax - ybase - y;
+ while (y > boty) {
+ k = (y << 1) + yk;
+ er -= k;
+ while ((er >= 0.0) && (xr >= 0)) {
+ xr--;
+ er += xrk - (xr << 1);
+ }
+ el -= k;
+ while ((el > 0.0) && (xl <= 0)) {
+ xl++;
+ el += (xl << 1) - xlk;
+ }
+ y--;
+ ybase++;
+ if (ybase < ymin)
+ continue;
+ xcl = xl + xbase;
+ xcr = xr + xbase;
+ CLIPSTEPEDGE(edgey1, edge1, edgeleft1);
+ CLIPSTEPEDGE(edgey2, edge2, edgeleft2);
+ if (xcr >= xcl) {
+ pts->x = xcl;
+ pts->y = ybase;
+ pts++;
+ *wids++ = xcr - xcl + 1;
+ }
}
return pts - points;
}
static int
-miRoundJoinFace (LineFacePtr face, PolyEdgePtr edge, Bool *leftEdge)
+miRoundJoinFace(LineFacePtr face, PolyEdgePtr edge, Bool *leftEdge)
{
- int y;
- int dx, dy;
- double xa, ya;
- Bool left;
+ int y;
+ int dx, dy;
+ double xa, ya;
+ Bool left;
dx = -face->dy;
dy = face->dx;
xa = face->xa;
ya = face->ya;
left = 1;
- if (ya > 0)
- {
- ya = 0.0;
- xa = 0.0;
+ if (ya > 0) {
+ ya = 0.0;
+ xa = 0.0;
}
- if (dy < 0 || (dy == 0 && dx > 0))
- {
- dx = -dx;
- dy = -dy;
- left = !left;
+ if (dy < 0 || (dy == 0 && dx > 0)) {
+ dx = -dx;
+ dy = -dy;
+ left = !left;
}
if (dx == 0 && dy == 0)
- dy = 1;
- if (dy == 0)
- {
- y = ICEIL (face->ya) + face->y;
- edge->x = -32767;
- edge->stepx = 0;
- edge->signdx = 0;
- edge->e = -1;
- edge->dy = 0;
- edge->dx = 0;
- edge->height = 0;
- }
- else
- {
- y = miPolyBuildEdge (xa, ya, 0.0, dx, dy, face->x, face->y, !left, edge);
- edge->height = 32767;
+ dy = 1;
+ if (dy == 0) {
+ y = ICEIL(face->ya) + face->y;
+ edge->x = -32767;
+ edge->stepx = 0;
+ edge->signdx = 0;
+ edge->e = -1;
+ edge->dy = 0;
+ edge->dx = 0;
+ edge->height = 0;
+ }
+ else {
+ y = miPolyBuildEdge(xa, ya, 0.0, dx, dy, face->x, face->y, !left, edge);
+ edge->height = 32767;
}
*leftEdge = !left;
return y;
}
void
-miRoundJoinClip (LineFacePtr pLeft, LineFacePtr pRight,
- PolyEdgePtr edge1, PolyEdgePtr edge2,
- int *y1, int *y2, Bool *left1, Bool *left2)
+miRoundJoinClip(LineFacePtr pLeft, LineFacePtr pRight,
+ PolyEdgePtr edge1, PolyEdgePtr edge2,
+ int *y1, int *y2, Bool *left1, Bool *left2)
{
- double denom;
+ double denom;
- denom = - pLeft->dx * (double)pRight->dy + pRight->dx * (double)pLeft->dy;
+ denom = -pLeft->dx * (double) pRight->dy + pRight->dx * (double) pLeft->dy;
- if (denom >= 0)
- {
- pLeft->xa = -pLeft->xa;
- pLeft->ya = -pLeft->ya;
+ if (denom >= 0) {
+ pLeft->xa = -pLeft->xa;
+ pLeft->ya = -pLeft->ya;
}
- else
- {
- pRight->xa = -pRight->xa;
- pRight->ya = -pRight->ya;
+ else {
+ pRight->xa = -pRight->xa;
+ pRight->ya = -pRight->ya;
}
- *y1 = miRoundJoinFace (pLeft, edge1, left1);
- *y2 = miRoundJoinFace (pRight, edge2, left2);
+ *y1 = miRoundJoinFace(pLeft, edge1, left1);
+ *y2 = miRoundJoinFace(pRight, edge2, left2);
}
int
-miRoundCapClip (LineFacePtr face, Bool isInt, PolyEdgePtr edge, Bool *leftEdge)
+miRoundCapClip(LineFacePtr face, Bool isInt, PolyEdgePtr edge, Bool *leftEdge)
{
- int y;
- int dx, dy;
- double xa, ya, k;
- Bool left;
+ int y;
+ int dx, dy;
+ double xa, ya, k;
+ Bool left;
dx = -face->dy;
dy = face->dx;
@@ -997,326 +900,300 @@ miRoundCapClip (LineFacePtr face, Bool isInt, PolyEdgePtr edge, Bool *leftEdge)
ya = face->ya;
k = 0.0;
if (!isInt)
- k = face->k;
+ k = face->k;
left = 1;
- if (dy < 0 || (dy == 0 && dx > 0))
- {
- dx = -dx;
- dy = -dy;
- xa = -xa;
- ya = -ya;
- left = !left;
+ if (dy < 0 || (dy == 0 && dx > 0)) {
+ dx = -dx;
+ dy = -dy;
+ xa = -xa;
+ ya = -ya;
+ left = !left;
}
if (dx == 0 && dy == 0)
- dy = 1;
- if (dy == 0)
- {
- y = ICEIL (face->ya) + face->y;
- edge->x = -32767;
- edge->stepx = 0;
- edge->signdx = 0;
- edge->e = -1;
- edge->dy = 0;
- edge->dx = 0;
- edge->height = 0;
- }
- else
- {
- y = miPolyBuildEdge (xa, ya, k, dx, dy, face->x, face->y, !left, edge);
- edge->height = 32767;
+ dy = 1;
+ if (dy == 0) {
+ y = ICEIL(face->ya) + face->y;
+ edge->x = -32767;
+ edge->stepx = 0;
+ edge->signdx = 0;
+ edge->e = -1;
+ edge->dy = 0;
+ edge->dx = 0;
+ edge->height = 0;
+ }
+ else {
+ y = miPolyBuildEdge(xa, ya, k, dx, dy, face->x, face->y, !left, edge);
+ edge->height = 32767;
}
*leftEdge = !left;
return y;
}
static void
-miLineArc (
- DrawablePtr pDraw,
- GCPtr pGC,
- unsigned long pixel,
- SpanDataPtr spanData,
- LineFacePtr leftFace,
- LineFacePtr rightFace,
- double xorg,
- double yorg,
- Bool isInt)
+miLineArc(DrawablePtr pDraw,
+ GCPtr pGC,
+ unsigned long pixel,
+ SpanDataPtr spanData,
+ LineFacePtr leftFace,
+ LineFacePtr rightFace, double xorg, double yorg, Bool isInt)
{
int xorgi = 0, yorgi = 0;
Spans spanRec;
int n;
- PolyEdgeRec edge1, edge2;
- int edgey1, edgey2;
- Bool edgeleft1, edgeleft2;
+ PolyEdgeRec edge1, edge2;
+ int edgey1, edgey2;
+ Bool edgeleft1, edgeleft2;
- if (isInt)
- {
- xorgi = leftFace ? leftFace->x : rightFace->x;
- yorgi = leftFace ? leftFace->y : rightFace->y;
+ if (isInt) {
+ xorgi = leftFace ? leftFace->x : rightFace->x;
+ yorgi = leftFace ? leftFace->y : rightFace->y;
}
edgey1 = 65536;
edgey2 = 65536;
- edge1.x = 0; /* not used, keep memory checkers happy */
+ edge1.x = 0; /* not used, keep memory checkers happy */
edge1.dy = -1;
- edge2.x = 0; /* not used, keep memory checkers happy */
+ edge2.x = 0; /* not used, keep memory checkers happy */
edge2.dy = -1;
edgeleft1 = FALSE;
edgeleft2 = FALSE;
if ((pGC->lineStyle != LineSolid || pGC->lineWidth > 2) &&
- ((pGC->capStyle == CapRound && pGC->joinStyle != JoinRound) ||
- (pGC->joinStyle == JoinRound && pGC->capStyle == CapButt)))
- {
- if (isInt)
- {
- xorg = (double) xorgi;
- yorg = (double) yorgi;
- }
- if (leftFace && rightFace)
- {
- miRoundJoinClip (leftFace, rightFace, &edge1, &edge2,
- &edgey1, &edgey2, &edgeleft1, &edgeleft2);
- }
- else if (leftFace)
- {
- edgey1 = miRoundCapClip (leftFace, isInt, &edge1, &edgeleft1);
- }
- else if (rightFace)
- {
- edgey2 = miRoundCapClip (rightFace, isInt, &edge2, &edgeleft2);
- }
- isInt = FALSE;
+ ((pGC->capStyle == CapRound && pGC->joinStyle != JoinRound) ||
+ (pGC->joinStyle == JoinRound && pGC->capStyle == CapButt))) {
+ if (isInt) {
+ xorg = (double) xorgi;
+ yorg = (double) yorgi;
+ }
+ if (leftFace && rightFace) {
+ miRoundJoinClip(leftFace, rightFace, &edge1, &edge2,
+ &edgey1, &edgey2, &edgeleft1, &edgeleft2);
+ }
+ else if (leftFace) {
+ edgey1 = miRoundCapClip(leftFace, isInt, &edge1, &edgeleft1);
+ }
+ else if (rightFace) {
+ edgey2 = miRoundCapClip(rightFace, isInt, &edge2, &edgeleft2);
+ }
+ isInt = FALSE;
}
if (!InitSpans(&spanRec, pGC->lineWidth))
- return;
+ return;
if (isInt)
- n = miLineArcI(pDraw, pGC, xorgi, yorgi, spanRec.points, spanRec.widths);
+ n = miLineArcI(pDraw, pGC, xorgi, yorgi, spanRec.points,
+ spanRec.widths);
else
- n = miLineArcD(pDraw, pGC, xorg, yorg, spanRec.points, spanRec.widths,
- &edge1, edgey1, edgeleft1,
- &edge2, edgey2, edgeleft2);
+ n = miLineArcD(pDraw, pGC, xorg, yorg, spanRec.points, spanRec.widths,
+ &edge1, edgey1, edgeleft1, &edge2, edgey2, edgeleft2);
spanRec.count = n;
- fillSpans (pDraw, pGC, pixel, &spanRec, spanData);
+ fillSpans(pDraw, pGC, pixel, &spanRec, spanData);
}
static void
-miLineProjectingCap (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
- SpanDataPtr spanData, LineFacePtr face, Bool isLeft,
- double xorg, double yorg, Bool isInt)
+miLineProjectingCap(DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
+ SpanDataPtr spanData, LineFacePtr face, Bool isLeft,
+ double xorg, double yorg, Bool isInt)
{
- int xorgi = 0, yorgi = 0;
- int lw;
- PolyEdgeRec lefts[2], rights[2];
- int lefty, righty, topy, bottomy;
+ int xorgi = 0, yorgi = 0;
+ int lw;
+ PolyEdgeRec lefts[2], rights[2];
+ int lefty, righty, topy, bottomy;
PolyEdgePtr left, right;
- PolyEdgePtr top, bottom;
- double xa,ya;
- double k;
- double xap, yap;
- int dx, dy;
- double projectXoff, projectYoff;
- double maxy;
- int finaly;
-
- if (isInt)
- {
- xorgi = face->x;
- yorgi = face->y;
+ PolyEdgePtr top, bottom;
+ double xa, ya;
+ double k;
+ double xap, yap;
+ int dx, dy;
+ double projectXoff, projectYoff;
+ double maxy;
+ int finaly;
+
+ if (isInt) {
+ xorgi = face->x;
+ yorgi = face->y;
}
lw = pGC->lineWidth;
dx = face->dx;
dy = face->dy;
k = face->k;
- if (dy == 0)
- {
- lefts[0].height = lw;
- lefts[0].x = xorgi;
- if (isLeft)
- lefts[0].x -= (lw >> 1);
- lefts[0].stepx = 0;
- lefts[0].signdx = 1;
- lefts[0].e = -lw;
- lefts[0].dx = 0;
- lefts[0].dy = lw;
- rights[0].height = lw;
- rights[0].x = xorgi;
- if (!isLeft)
- rights[0].x += ((lw + 1) >> 1);
- rights[0].stepx = 0;
- rights[0].signdx = 1;
- rights[0].e = -lw;
- rights[0].dx = 0;
- rights[0].dy = lw;
- miFillPolyHelper (pDrawable, pGC, pixel, spanData, yorgi - (lw >> 1), lw,
- lefts, rights, 1, 1);
- }
- else if (dx == 0)
- {
- if (dy < 0) {
- dy = -dy;
- isLeft = !isLeft;
- }
- topy = yorgi;
- bottomy = yorgi + dy;
- if (isLeft)
- topy -= (lw >> 1);
- else
- bottomy += (lw >> 1);
- lefts[0].height = bottomy - topy;
- lefts[0].x = xorgi - (lw >> 1);
- lefts[0].stepx = 0;
- lefts[0].signdx = 1;
- lefts[0].e = -dy;
- lefts[0].dx = dx;
- lefts[0].dy = dy;
-
- rights[0].height = bottomy - topy;
- rights[0].x = lefts[0].x + (lw-1);
- rights[0].stepx = 0;
- rights[0].signdx = 1;
- rights[0].e = -dy;
- rights[0].dx = dx;
- rights[0].dy = dy;
- miFillPolyHelper (pDrawable, pGC, pixel, spanData, topy, bottomy - topy, lefts, rights, 1, 1);
- }
- else
- {
- xa = face->xa;
- ya = face->ya;
- projectXoff = -ya;
- projectYoff = xa;
- if (dx < 0)
- {
- right = &rights[1];
- left = &lefts[0];
- top = &rights[0];
- bottom = &lefts[1];
- }
- else
- {
- right = &rights[0];
- left = &lefts[1];
- top = &lefts[0];
- bottom = &rights[1];
- }
- if (isLeft)
- {
- righty = miPolyBuildEdge (xa, ya,
- k, dx, dy, xorgi, yorgi, 0, right);
-
- xa = -xa;
- ya = -ya;
- k = -k;
- lefty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,
- k, dx, dy, xorgi, yorgi, 1, left);
- if (dx > 0)
- {
- ya = -ya;
- xa = -xa;
- }
- xap = xa - projectXoff;
- yap = ya - projectYoff;
- topy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,
- -dy, dx, xorgi, yorgi, dx > 0, top);
- bottomy = miPolyBuildEdge (xa, ya,
- 0.0, -dy, dx, xorgi, yorgi, dx < 0, bottom);
- maxy = -ya;
- }
- else
- {
- righty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,
- k, dx, dy, xorgi, yorgi, 0, right);
-
- xa = -xa;
- ya = -ya;
- k = -k;
- lefty = miPolyBuildEdge (xa, ya,
- k, dx, dy, xorgi, yorgi, 1, left);
- if (dx > 0)
- {
- ya = -ya;
- xa = -xa;
- }
- xap = xa - projectXoff;
- yap = ya - projectYoff;
- topy = miPolyBuildEdge (xa, ya, 0.0, -dy, dx, xorgi, xorgi, dx > 0, top);
- bottomy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,
- -dy, dx, xorgi, xorgi, dx < 0, bottom);
- maxy = -ya + projectYoff;
- }
- finaly = ICEIL(maxy) + yorgi;
- if (dx < 0)
- {
- left->height = bottomy - lefty;
- right->height = finaly - righty;
- top->height = righty - topy;
- }
- else
- {
- right->height = bottomy - righty;
- left->height = finaly - lefty;
- top->height = lefty - topy;
- }
- bottom->height = finaly - bottomy;
- miFillPolyHelper (pDrawable, pGC, pixel, spanData, topy,
- bottom->height + bottomy - topy, lefts, rights, 2, 2);
+ if (dy == 0) {
+ lefts[0].height = lw;
+ lefts[0].x = xorgi;
+ if (isLeft)
+ lefts[0].x -= (lw >> 1);
+ lefts[0].stepx = 0;
+ lefts[0].signdx = 1;
+ lefts[0].e = -lw;
+ lefts[0].dx = 0;
+ lefts[0].dy = lw;
+ rights[0].height = lw;
+ rights[0].x = xorgi;
+ if (!isLeft)
+ rights[0].x += ((lw + 1) >> 1);
+ rights[0].stepx = 0;
+ rights[0].signdx = 1;
+ rights[0].e = -lw;
+ rights[0].dx = 0;
+ rights[0].dy = lw;
+ miFillPolyHelper(pDrawable, pGC, pixel, spanData, yorgi - (lw >> 1), lw,
+ lefts, rights, 1, 1);
+ }
+ else if (dx == 0) {
+ if (dy < 0) {
+ dy = -dy;
+ isLeft = !isLeft;
+ }
+ topy = yorgi;
+ bottomy = yorgi + dy;
+ if (isLeft)
+ topy -= (lw >> 1);
+ else
+ bottomy += (lw >> 1);
+ lefts[0].height = bottomy - topy;
+ lefts[0].x = xorgi - (lw >> 1);
+ lefts[0].stepx = 0;
+ lefts[0].signdx = 1;
+ lefts[0].e = -dy;
+ lefts[0].dx = dx;
+ lefts[0].dy = dy;
+
+ rights[0].height = bottomy - topy;
+ rights[0].x = lefts[0].x + (lw - 1);
+ rights[0].stepx = 0;
+ rights[0].signdx = 1;
+ rights[0].e = -dy;
+ rights[0].dx = dx;
+ rights[0].dy = dy;
+ miFillPolyHelper(pDrawable, pGC, pixel, spanData, topy, bottomy - topy,
+ lefts, rights, 1, 1);
+ }
+ else {
+ xa = face->xa;
+ ya = face->ya;
+ projectXoff = -ya;
+ projectYoff = xa;
+ if (dx < 0) {
+ right = &rights[1];
+ left = &lefts[0];
+ top = &rights[0];
+ bottom = &lefts[1];
+ }
+ else {
+ right = &rights[0];
+ left = &lefts[1];
+ top = &lefts[0];
+ bottom = &rights[1];
+ }
+ if (isLeft) {
+ righty = miPolyBuildEdge(xa, ya, k, dx, dy, xorgi, yorgi, 0, right);
+
+ xa = -xa;
+ ya = -ya;
+ k = -k;
+ lefty = miPolyBuildEdge(xa - projectXoff, ya - projectYoff,
+ k, dx, dy, xorgi, yorgi, 1, left);
+ if (dx > 0) {
+ ya = -ya;
+ xa = -xa;
+ }
+ xap = xa - projectXoff;
+ yap = ya - projectYoff;
+ topy = miPolyBuildEdge(xap, yap, xap * dx + yap * dy,
+ -dy, dx, xorgi, yorgi, dx > 0, top);
+ bottomy = miPolyBuildEdge(xa, ya,
+ 0.0, -dy, dx, xorgi, yorgi, dx < 0,
+ bottom);
+ maxy = -ya;
+ }
+ else {
+ righty = miPolyBuildEdge(xa - projectXoff, ya - projectYoff,
+ k, dx, dy, xorgi, yorgi, 0, right);
+
+ xa = -xa;
+ ya = -ya;
+ k = -k;
+ lefty = miPolyBuildEdge(xa, ya, k, dx, dy, xorgi, yorgi, 1, left);
+ if (dx > 0) {
+ ya = -ya;
+ xa = -xa;
+ }
+ xap = xa - projectXoff;
+ yap = ya - projectYoff;
+ topy =
+ miPolyBuildEdge(xa, ya, 0.0, -dy, dx, xorgi, xorgi, dx > 0,
+ top);
+ bottomy =
+ miPolyBuildEdge(xap, yap, xap * dx + yap * dy, -dy, dx, xorgi,
+ xorgi, dx < 0, bottom);
+ maxy = -ya + projectYoff;
+ }
+ finaly = ICEIL(maxy) + yorgi;
+ if (dx < 0) {
+ left->height = bottomy - lefty;
+ right->height = finaly - righty;
+ top->height = righty - topy;
+ }
+ else {
+ right->height = bottomy - righty;
+ left->height = finaly - lefty;
+ top->height = lefty - topy;
+ }
+ bottom->height = finaly - bottomy;
+ miFillPolyHelper(pDrawable, pGC, pixel, spanData, topy,
+ bottom->height + bottomy - topy, lefts, rights, 2, 2);
}
}
static void
-miWideSegment (
- DrawablePtr pDrawable,
- GCPtr pGC,
- unsigned long pixel,
- SpanDataPtr spanData,
- int x1,
- int y1,
- int x2,
- int y2,
- Bool projectLeft,
- Bool projectRight,
- LineFacePtr leftFace,
- LineFacePtr rightFace)
+miWideSegment(DrawablePtr pDrawable,
+ GCPtr pGC,
+ unsigned long pixel,
+ SpanDataPtr spanData,
+ int x1,
+ int y1,
+ int x2,
+ int y2,
+ Bool projectLeft,
+ Bool projectRight, LineFacePtr leftFace, LineFacePtr rightFace)
{
- double l, L, r;
- double xa, ya;
- double projectXoff = 0.0, projectYoff = 0.0;
- double k;
- double maxy;
- int x, y;
- int dx, dy;
- int finaly;
+ double l, L, r;
+ double xa, ya;
+ double projectXoff = 0.0, projectYoff = 0.0;
+ double k;
+ double maxy;
+ int x, y;
+ int dx, dy;
+ int finaly;
PolyEdgePtr left, right;
- PolyEdgePtr top, bottom;
- int lefty, righty, topy, bottomy;
- int signdx;
- PolyEdgeRec lefts[2], rights[2];
- LineFacePtr tface;
- int lw = pGC->lineWidth;
+ PolyEdgePtr top, bottom;
+ int lefty, righty, topy, bottomy;
+ int signdx;
+ PolyEdgeRec lefts[2], rights[2];
+ LineFacePtr tface;
+ int lw = pGC->lineWidth;
/* draw top-to-bottom always */
- if (y2 < y1 || (y2 == y1 && x2 < x1))
- {
- x = x1;
- x1 = x2;
- x2 = x;
+ if (y2 < y1 || (y2 == y1 && x2 < x1)) {
+ x = x1;
+ x1 = x2;
+ x2 = x;
- y = y1;
- y1 = y2;
- y2 = y;
+ y = y1;
+ y1 = y2;
+ y2 = y;
- x = projectLeft;
- projectLeft = projectRight;
- projectRight = x;
+ x = projectLeft;
+ projectLeft = projectRight;
+ projectRight = x;
- tface = leftFace;
- leftFace = rightFace;
- rightFace = tface;
+ tface = leftFace;
+ leftFace = rightFace;
+ rightFace = tface;
}
dy = y2 - y1;
signdx = 1;
dx = x2 - x1;
if (dx < 0)
- signdx = -1;
+ signdx = -1;
leftFace->x = x1;
leftFace->y = y1;
@@ -1328,327 +1205,293 @@ miWideSegment (
rightFace->dx = -dx;
rightFace->dy = -dy;
- if (dy == 0)
- {
- rightFace->xa = 0;
- rightFace->ya = (double) lw / 2.0;
- rightFace->k = -(double) (lw * dx) / 2.0;
- leftFace->xa = 0;
- leftFace->ya = -rightFace->ya;
- leftFace->k = rightFace->k;
- x = x1;
- if (projectLeft)
- x -= (lw >> 1);
- y = y1 - (lw >> 1);
- dx = x2 - x;
- if (projectRight)
- dx += ((lw + 1) >> 1);
- dy = lw;
- miFillRectPolyHelper (pDrawable, pGC, pixel, spanData,
- x, y, dx, dy);
- }
- else if (dx == 0)
- {
- leftFace->xa = (double) lw / 2.0;
- leftFace->ya = 0;
- leftFace->k = (double) (lw * dy) / 2.0;
- rightFace->xa = -leftFace->xa;
- rightFace->ya = 0;
- rightFace->k = leftFace->k;
- y = y1;
- if (projectLeft)
- y -= lw >> 1;
- x = x1 - (lw >> 1);
- dy = y2 - y;
- if (projectRight)
- dy += ((lw + 1) >> 1);
- dx = lw;
- miFillRectPolyHelper (pDrawable, pGC, pixel, spanData,
- x, y, dx, dy);
- }
- else
- {
- l = ((double) lw) / 2.0;
- L = hypot ((double) dx, (double) dy);
-
- if (dx < 0)
- {
- right = &rights[1];
- left = &lefts[0];
- top = &rights[0];
- bottom = &lefts[1];
- }
- else
- {
- right = &rights[0];
- left = &lefts[1];
- top = &lefts[0];
- bottom = &rights[1];
- }
- r = l / L;
-
- /* coord of upper bound at integral y */
- ya = -r * dx;
- xa = r * dy;
-
- if (projectLeft | projectRight)
- {
- projectXoff = -ya;
- projectYoff = xa;
- }
-
- /* xa * dy - ya * dx */
- k = l * L;
-
- leftFace->xa = xa;
- leftFace->ya = ya;
- leftFace->k = k;
- rightFace->xa = -xa;
- rightFace->ya = -ya;
- rightFace->k = k;
-
- if (projectLeft)
- righty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,
- k, dx, dy, x1, y1, 0, right);
- else
- righty = miPolyBuildEdge (xa, ya,
- k, dx, dy, x1, y1, 0, right);
-
- /* coord of lower bound at integral y */
- ya = -ya;
- xa = -xa;
-
- /* xa * dy - ya * dx */
- k = - k;
-
- if (projectLeft)
- lefty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,
- k, dx, dy, x1, y1, 1, left);
- else
- lefty = miPolyBuildEdge (xa, ya,
- k, dx, dy, x1, y1, 1, left);
-
- /* coord of top face at integral y */
-
- if (signdx > 0)
- {
- ya = -ya;
- xa = -xa;
- }
-
- if (projectLeft)
- {
- double xap = xa - projectXoff;
- double yap = ya - projectYoff;
- topy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,
- -dy, dx, x1, y1, dx > 0, top);
- }
- else
- topy = miPolyBuildEdge (xa, ya, 0.0, -dy, dx, x1, y1, dx > 0, top);
-
- /* coord of bottom face at integral y */
-
- if (projectRight)
- {
- double xap = xa + projectXoff;
- double yap = ya + projectYoff;
- bottomy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,
- -dy, dx, x2, y2, dx < 0, bottom);
- maxy = -ya + projectYoff;
- }
- else
- {
- bottomy = miPolyBuildEdge (xa, ya,
- 0.0, -dy, dx, x2, y2, dx < 0, bottom);
- maxy = -ya;
- }
-
- finaly = ICEIL (maxy) + y2;
-
- if (dx < 0)
- {
- left->height = bottomy - lefty;
- right->height = finaly - righty;
- top->height = righty - topy;
- }
- else
- {
- right->height = bottomy - righty;
- left->height = finaly - lefty;
- top->height = lefty - topy;
- }
- bottom->height = finaly - bottomy;
- miFillPolyHelper (pDrawable, pGC, pixel, spanData, topy,
- bottom->height + bottomy - topy, lefts, rights, 2, 2);
+ if (dy == 0) {
+ rightFace->xa = 0;
+ rightFace->ya = (double) lw / 2.0;
+ rightFace->k = -(double) (lw * dx) / 2.0;
+ leftFace->xa = 0;
+ leftFace->ya = -rightFace->ya;
+ leftFace->k = rightFace->k;
+ x = x1;
+ if (projectLeft)
+ x -= (lw >> 1);
+ y = y1 - (lw >> 1);
+ dx = x2 - x;
+ if (projectRight)
+ dx += ((lw + 1) >> 1);
+ dy = lw;
+ miFillRectPolyHelper(pDrawable, pGC, pixel, spanData, x, y, dx, dy);
+ }
+ else if (dx == 0) {
+ leftFace->xa = (double) lw / 2.0;
+ leftFace->ya = 0;
+ leftFace->k = (double) (lw * dy) / 2.0;
+ rightFace->xa = -leftFace->xa;
+ rightFace->ya = 0;
+ rightFace->k = leftFace->k;
+ y = y1;
+ if (projectLeft)
+ y -= lw >> 1;
+ x = x1 - (lw >> 1);
+ dy = y2 - y;
+ if (projectRight)
+ dy += ((lw + 1) >> 1);
+ dx = lw;
+ miFillRectPolyHelper(pDrawable, pGC, pixel, spanData, x, y, dx, dy);
+ }
+ else {
+ l = ((double) lw) / 2.0;
+ L = hypot((double) dx, (double) dy);
+
+ if (dx < 0) {
+ right = &rights[1];
+ left = &lefts[0];
+ top = &rights[0];
+ bottom = &lefts[1];
+ }
+ else {
+ right = &rights[0];
+ left = &lefts[1];
+ top = &lefts[0];
+ bottom = &rights[1];
+ }
+ r = l / L;
+
+ /* coord of upper bound at integral y */
+ ya = -r * dx;
+ xa = r * dy;
+
+ if (projectLeft | projectRight) {
+ projectXoff = -ya;
+ projectYoff = xa;
+ }
+
+ /* xa * dy - ya * dx */
+ k = l * L;
+
+ leftFace->xa = xa;
+ leftFace->ya = ya;
+ leftFace->k = k;
+ rightFace->xa = -xa;
+ rightFace->ya = -ya;
+ rightFace->k = k;
+
+ if (projectLeft)
+ righty = miPolyBuildEdge(xa - projectXoff, ya - projectYoff,
+ k, dx, dy, x1, y1, 0, right);
+ else
+ righty = miPolyBuildEdge(xa, ya, k, dx, dy, x1, y1, 0, right);
+
+ /* coord of lower bound at integral y */
+ ya = -ya;
+ xa = -xa;
+
+ /* xa * dy - ya * dx */
+ k = -k;
+
+ if (projectLeft)
+ lefty = miPolyBuildEdge(xa - projectXoff, ya - projectYoff,
+ k, dx, dy, x1, y1, 1, left);
+ else
+ lefty = miPolyBuildEdge(xa, ya, k, dx, dy, x1, y1, 1, left);
+
+ /* coord of top face at integral y */
+
+ if (signdx > 0) {
+ ya = -ya;
+ xa = -xa;
+ }
+
+ if (projectLeft) {
+ double xap = xa - projectXoff;
+ double yap = ya - projectYoff;
+
+ topy = miPolyBuildEdge(xap, yap, xap * dx + yap * dy,
+ -dy, dx, x1, y1, dx > 0, top);
+ }
+ else
+ topy = miPolyBuildEdge(xa, ya, 0.0, -dy, dx, x1, y1, dx > 0, top);
+
+ /* coord of bottom face at integral y */
+
+ if (projectRight) {
+ double xap = xa + projectXoff;
+ double yap = ya + projectYoff;
+
+ bottomy = miPolyBuildEdge(xap, yap, xap * dx + yap * dy,
+ -dy, dx, x2, y2, dx < 0, bottom);
+ maxy = -ya + projectYoff;
+ }
+ else {
+ bottomy = miPolyBuildEdge(xa, ya,
+ 0.0, -dy, dx, x2, y2, dx < 0, bottom);
+ maxy = -ya;
+ }
+
+ finaly = ICEIL(maxy) + y2;
+
+ if (dx < 0) {
+ left->height = bottomy - lefty;
+ right->height = finaly - righty;
+ top->height = righty - topy;
+ }
+ else {
+ right->height = bottomy - righty;
+ left->height = finaly - lefty;
+ top->height = lefty - topy;
+ }
+ bottom->height = finaly - bottomy;
+ miFillPolyHelper(pDrawable, pGC, pixel, spanData, topy,
+ bottom->height + bottomy - topy, lefts, rights, 2, 2);
}
}
static SpanDataPtr
-miSetupSpanData (GCPtr pGC, SpanDataPtr spanData, int npt)
+miSetupSpanData(GCPtr pGC, SpanDataPtr spanData, int npt)
{
if ((npt < 3 && pGC->capStyle != CapRound) || miSpansEasyRop(pGC->alu))
- return (SpanDataPtr) NULL;
+ return (SpanDataPtr) NULL;
if (pGC->lineStyle == LineDoubleDash)
- miInitSpanGroup (&spanData->bgGroup);
- miInitSpanGroup (&spanData->fgGroup);
+ miInitSpanGroup(&spanData->bgGroup);
+ miInitSpanGroup(&spanData->fgGroup);
return spanData;
}
static void
-miCleanupSpanData (DrawablePtr pDrawable, GCPtr pGC, SpanDataPtr spanData)
+miCleanupSpanData(DrawablePtr pDrawable, GCPtr pGC, SpanDataPtr spanData)
{
- if (pGC->lineStyle == LineDoubleDash)
- {
- ChangeGCVal oldPixel, pixel;
- pixel.val = pGC->bgPixel;
- oldPixel.val = pGC->fgPixel;
- if (pixel.val != oldPixel.val)
- {
- ChangeGC (NullClient, pGC, GCForeground, &pixel);
- ValidateGC (pDrawable, pGC);
- }
- miFillUniqueSpanGroup (pDrawable, pGC, &spanData->bgGroup);
- miFreeSpanGroup (&spanData->bgGroup);
- if (pixel.val != oldPixel.val)
- {
- ChangeGC (NullClient, pGC, GCForeground, &oldPixel);
- ValidateGC (pDrawable, pGC);
- }
- }
- miFillUniqueSpanGroup (pDrawable, pGC, &spanData->fgGroup);
- miFreeSpanGroup (&spanData->fgGroup);
+ if (pGC->lineStyle == LineDoubleDash) {
+ ChangeGCVal oldPixel, pixel;
+
+ pixel.val = pGC->bgPixel;
+ oldPixel.val = pGC->fgPixel;
+ if (pixel.val != oldPixel.val) {
+ ChangeGC(NullClient, pGC, GCForeground, &pixel);
+ ValidateGC(pDrawable, pGC);
+ }
+ miFillUniqueSpanGroup(pDrawable, pGC, &spanData->bgGroup);
+ miFreeSpanGroup(&spanData->bgGroup);
+ if (pixel.val != oldPixel.val) {
+ ChangeGC(NullClient, pGC, GCForeground, &oldPixel);
+ ValidateGC(pDrawable, pGC);
+ }
+ }
+ miFillUniqueSpanGroup(pDrawable, pGC, &spanData->fgGroup);
+ miFreeSpanGroup(&spanData->fgGroup);
}
void
-miWideLine (DrawablePtr pDrawable, GCPtr pGC,
- int mode, int npt, DDXPointPtr pPts)
+miWideLine(DrawablePtr pDrawable, GCPtr pGC,
+ int mode, int npt, DDXPointPtr pPts)
{
- int x1, y1, x2, y2;
- SpanDataRec spanDataRec;
- SpanDataPtr spanData;
- long pixel;
- Bool projectLeft, projectRight;
- LineFaceRec leftFace, rightFace, prevRightFace;
- LineFaceRec firstFace;
- int first;
- Bool somethingDrawn = FALSE;
- Bool selfJoin;
-
- spanData = miSetupSpanData (pGC, &spanDataRec, npt);
+ int x1, y1, x2, y2;
+ SpanDataRec spanDataRec;
+ SpanDataPtr spanData;
+ long pixel;
+ Bool projectLeft, projectRight;
+ LineFaceRec leftFace, rightFace, prevRightFace;
+ LineFaceRec firstFace;
+ int first;
+ Bool somethingDrawn = FALSE;
+ Bool selfJoin;
+
+ spanData = miSetupSpanData(pGC, &spanDataRec, npt);
pixel = pGC->fgPixel;
x2 = pPts->x;
y2 = pPts->y;
first = TRUE;
selfJoin = FALSE;
- if (npt > 1)
- {
- if (mode == CoordModePrevious)
- {
- int nptTmp;
- DDXPointPtr pPtsTmp;
-
- x1 = x2;
- y1 = y2;
- nptTmp = npt;
- pPtsTmp = pPts + 1;
- while (--nptTmp)
- {
- x1 += pPtsTmp->x;
- y1 += pPtsTmp->y;
- ++pPtsTmp;
- }
- if (x2 == x1 && y2 == y1)
- selfJoin = TRUE;
- }
- else if (x2 == pPts[npt-1].x && y2 == pPts[npt-1].y)
- {
- selfJoin = TRUE;
- }
+ if (npt > 1) {
+ if (mode == CoordModePrevious) {
+ int nptTmp;
+ DDXPointPtr pPtsTmp;
+
+ x1 = x2;
+ y1 = y2;
+ nptTmp = npt;
+ pPtsTmp = pPts + 1;
+ while (--nptTmp) {
+ x1 += pPtsTmp->x;
+ y1 += pPtsTmp->y;
+ ++pPtsTmp;
+ }
+ if (x2 == x1 && y2 == y1)
+ selfJoin = TRUE;
+ }
+ else if (x2 == pPts[npt - 1].x && y2 == pPts[npt - 1].y) {
+ selfJoin = TRUE;
+ }
}
projectLeft = pGC->capStyle == CapProjecting && !selfJoin;
projectRight = FALSE;
- while (--npt)
- {
- x1 = x2;
- y1 = y2;
- ++pPts;
- x2 = pPts->x;
- y2 = pPts->y;
- if (mode == CoordModePrevious)
- {
- x2 += x1;
- y2 += y1;
- }
- if (x1 != x2 || y1 != y2)
- {
- somethingDrawn = TRUE;
- if (npt == 1 && pGC->capStyle == CapProjecting && !selfJoin)
- projectRight = TRUE;
- miWideSegment (pDrawable, pGC, pixel, spanData, x1, y1, x2, y2,
- projectLeft, projectRight, &leftFace, &rightFace);
- if (first)
- {
- if (selfJoin)
- firstFace = leftFace;
- else if (pGC->capStyle == CapRound)
- {
- if (pGC->lineWidth == 1 && !spanData)
- miLineOnePoint (pDrawable, pGC, pixel, spanData, x1, y1);
- else
- miLineArc (pDrawable, pGC, pixel, spanData,
- &leftFace, (LineFacePtr) NULL,
- (double)0.0, (double)0.0,
- TRUE);
- }
- }
- else
- {
- miLineJoin (pDrawable, pGC, pixel, spanData, &leftFace,
- &prevRightFace);
- }
- prevRightFace = rightFace;
- first = FALSE;
- projectLeft = FALSE;
- }
- if (npt == 1 && somethingDrawn)
- {
- if (selfJoin)
- miLineJoin (pDrawable, pGC, pixel, spanData, &firstFace,
- &rightFace);
- else if (pGC->capStyle == CapRound)
- {
- if (pGC->lineWidth == 1 && !spanData)
- miLineOnePoint (pDrawable, pGC, pixel, spanData, x2, y2);
- else
- miLineArc (pDrawable, pGC, pixel, spanData,
- (LineFacePtr) NULL, &rightFace,
- (double)0.0, (double)0.0,
- TRUE);
- }
- }
+ while (--npt) {
+ x1 = x2;
+ y1 = y2;
+ ++pPts;
+ x2 = pPts->x;
+ y2 = pPts->y;
+ if (mode == CoordModePrevious) {
+ x2 += x1;
+ y2 += y1;
+ }
+ if (x1 != x2 || y1 != y2) {
+ somethingDrawn = TRUE;
+ if (npt == 1 && pGC->capStyle == CapProjecting && !selfJoin)
+ projectRight = TRUE;
+ miWideSegment(pDrawable, pGC, pixel, spanData, x1, y1, x2, y2,
+ projectLeft, projectRight, &leftFace, &rightFace);
+ if (first) {
+ if (selfJoin)
+ firstFace = leftFace;
+ else if (pGC->capStyle == CapRound) {
+ if (pGC->lineWidth == 1 && !spanData)
+ miLineOnePoint(pDrawable, pGC, pixel, spanData, x1, y1);
+ else
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ &leftFace, (LineFacePtr) NULL,
+ (double) 0.0, (double) 0.0, TRUE);
+ }
+ }
+ else {
+ miLineJoin(pDrawable, pGC, pixel, spanData, &leftFace,
+ &prevRightFace);
+ }
+ prevRightFace = rightFace;
+ first = FALSE;
+ projectLeft = FALSE;
+ }
+ if (npt == 1 && somethingDrawn) {
+ if (selfJoin)
+ miLineJoin(pDrawable, pGC, pixel, spanData, &firstFace,
+ &rightFace);
+ else if (pGC->capStyle == CapRound) {
+ if (pGC->lineWidth == 1 && !spanData)
+ miLineOnePoint(pDrawable, pGC, pixel, spanData, x2, y2);
+ else
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ (LineFacePtr) NULL, &rightFace,
+ (double) 0.0, (double) 0.0, TRUE);
+ }
+ }
}
/* handle crock where all points are coincedent */
- if (!somethingDrawn)
- {
- projectLeft = pGC->capStyle == CapProjecting;
- miWideSegment (pDrawable, pGC, pixel, spanData,
- x2, y2, x2, y2, projectLeft, projectLeft,
- &leftFace, &rightFace);
- if (pGC->capStyle == CapRound)
- {
- miLineArc (pDrawable, pGC, pixel, spanData,
- &leftFace, (LineFacePtr) NULL,
- (double)0.0, (double)0.0,
- TRUE);
- rightFace.dx = -1; /* sleezy hack to make it work */
- miLineArc (pDrawable, pGC, pixel, spanData,
- (LineFacePtr) NULL, &rightFace,
- (double)0.0, (double)0.0,
- TRUE);
- }
+ if (!somethingDrawn) {
+ projectLeft = pGC->capStyle == CapProjecting;
+ miWideSegment(pDrawable, pGC, pixel, spanData,
+ x2, y2, x2, y2, projectLeft, projectLeft,
+ &leftFace, &rightFace);
+ if (pGC->capStyle == CapRound) {
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ &leftFace, (LineFacePtr) NULL,
+ (double) 0.0, (double) 0.0, TRUE);
+ rightFace.dx = -1; /* sleezy hack to make it work */
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ (LineFacePtr) NULL, &rightFace,
+ (double) 0.0, (double) 0.0, TRUE);
+ }
}
if (spanData)
- miCleanupSpanData (pDrawable, pGC, spanData);
+ miCleanupSpanData(pDrawable, pGC, spanData);
}
#define V_TOP 0
@@ -1657,44 +1500,42 @@ miWideLine (DrawablePtr pDrawable, GCPtr pGC,
#define V_LEFT 3
static void
-miWideDashSegment (
- DrawablePtr pDrawable,
- GCPtr pGC,
- SpanDataPtr spanData,
- int *pDashOffset,
- int *pDashIndex,
- int x1,
- int y1,
- int x2,
- int y2,
- Bool projectLeft,
- Bool projectRight,
- LineFacePtr leftFace,
- LineFacePtr rightFace)
+miWideDashSegment(DrawablePtr pDrawable,
+ GCPtr pGC,
+ SpanDataPtr spanData,
+ int *pDashOffset,
+ int *pDashIndex,
+ int x1,
+ int y1,
+ int x2,
+ int y2,
+ Bool projectLeft,
+ Bool projectRight,
+ LineFacePtr leftFace, LineFacePtr rightFace)
{
- int dashIndex, dashRemain;
- unsigned char *pDash;
- double L, l;
- double k;
- PolyVertexRec vertices[4];
- PolyVertexRec saveRight, saveBottom;
- PolySlopeRec slopes[4];
- PolyEdgeRec left[2], right[2];
- LineFaceRec lcapFace, rcapFace;
- int nleft, nright;
- int h;
- int y;
- int dy, dx;
- unsigned long pixel;
- double LRemain;
- double r;
- double rdx, rdy;
- double dashDx, dashDy;
- double saveK = 0.0;
- Bool first = TRUE;
- double lcenterx, lcentery, rcenterx = 0.0, rcentery = 0.0;
- unsigned long fgPixel, bgPixel;
-
+ int dashIndex, dashRemain;
+ unsigned char *pDash;
+ double L, l;
+ double k;
+ PolyVertexRec vertices[4];
+ PolyVertexRec saveRight, saveBottom;
+ PolySlopeRec slopes[4];
+ PolyEdgeRec left[2], right[2];
+ LineFaceRec lcapFace, rcapFace;
+ int nleft, nright;
+ int h;
+ int y;
+ int dy, dx;
+ unsigned long pixel;
+ double LRemain;
+ double r;
+ double rdx, rdy;
+ double dashDx, dashDy;
+ double saveK = 0.0;
+ Bool first = TRUE;
+ double lcenterx, lcentery, rcenterx = 0.0, rcentery = 0.0;
+ unsigned long fgPixel, bgPixel;
+
dx = x2 - x1;
dy = y2 - y1;
dashIndex = *pDashIndex;
@@ -1702,42 +1543,35 @@ miWideDashSegment (
dashRemain = pDash[dashIndex] - *pDashOffset;
fgPixel = pGC->fgPixel;
bgPixel = pGC->bgPixel;
- if (pGC->fillStyle == FillOpaqueStippled ||
- pGC->fillStyle == FillTiled)
- {
- bgPixel = fgPixel;
+ if (pGC->fillStyle == FillOpaqueStippled || pGC->fillStyle == FillTiled) {
+ bgPixel = fgPixel;
}
l = ((double) pGC->lineWidth) / 2.0;
- if (dx == 0)
- {
- L = dy;
- rdx = 0;
- rdy = l;
- if (dy < 0)
- {
- L = -dy;
- rdy = -l;
- }
- }
- else if (dy == 0)
- {
- L = dx;
- rdx = l;
- rdy = 0;
- if (dx < 0)
- {
- L = -dx;
- rdx = -l;
- }
- }
- else
- {
- L = hypot ((double) dx, (double) dy);
- r = l / L;
-
- rdx = r * dx;
- rdy = r * dy;
+ if (dx == 0) {
+ L = dy;
+ rdx = 0;
+ rdy = l;
+ if (dy < 0) {
+ L = -dy;
+ rdy = -l;
+ }
+ }
+ else if (dy == 0) {
+ L = dx;
+ rdx = l;
+ rdy = 0;
+ if (dx < 0) {
+ L = -dx;
+ rdx = -l;
+ }
+ }
+ else {
+ L = hypot((double) dx, (double) dy);
+ r = l / L;
+
+ rdx = r * dx;
+ rdy = r * dy;
}
k = l * L;
LRemain = L;
@@ -1767,230 +1601,203 @@ miWideDashSegment (
vertices[V_BOTTOM].x = vertices[V_LEFT].x = -rdy;
vertices[V_BOTTOM].y = vertices[V_LEFT].y = rdx;
- if (projectLeft)
- {
- vertices[V_TOP].x -= rdx;
- vertices[V_TOP].y -= rdy;
+ if (projectLeft) {
+ vertices[V_TOP].x -= rdx;
+ vertices[V_TOP].y -= rdy;
- vertices[V_LEFT].x -= rdx;
- vertices[V_LEFT].y -= rdy;
+ vertices[V_LEFT].x -= rdx;
+ vertices[V_LEFT].y -= rdy;
- slopes[V_LEFT].k = rdx * dx + rdy * dy;
+ slopes[V_LEFT].k = rdx * dx + rdy * dy;
}
lcenterx = x1;
lcentery = y1;
- if (pGC->capStyle == CapRound)
- {
- lcapFace.dx = dx;
- lcapFace.dy = dy;
- lcapFace.x = x1;
- lcapFace.y = y1;
-
- rcapFace.dx = -dx;
- rcapFace.dy = -dy;
- rcapFace.x = x1;
- rcapFace.y = y1;
- }
- while (LRemain > dashRemain)
- {
- dashDx = (dashRemain * dx) / L;
- dashDy = (dashRemain * dy) / L;
-
- rcenterx = lcenterx + dashDx;
- rcentery = lcentery + dashDy;
-
- vertices[V_RIGHT].x += dashDx;
- vertices[V_RIGHT].y += dashDy;
-
- vertices[V_BOTTOM].x += dashDx;
- vertices[V_BOTTOM].y += dashDy;
-
- slopes[V_RIGHT].k = vertices[V_RIGHT].x * dx + vertices[V_RIGHT].y * dy;
-
- if (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1))
- {
- if (pGC->lineStyle == LineOnOffDash &&
- pGC->capStyle == CapProjecting)
- {
- saveRight = vertices[V_RIGHT];
- saveBottom = vertices[V_BOTTOM];
- saveK = slopes[V_RIGHT].k;
-
- if (!first)
- {
- vertices[V_TOP].x -= rdx;
- vertices[V_TOP].y -= rdy;
-
- vertices[V_LEFT].x -= rdx;
- vertices[V_LEFT].y -= rdy;
-
- slopes[V_LEFT].k = vertices[V_LEFT].x *
- slopes[V_LEFT].dy -
- vertices[V_LEFT].y *
- slopes[V_LEFT].dx;
- }
-
- vertices[V_RIGHT].x += rdx;
- vertices[V_RIGHT].y += rdy;
-
- vertices[V_BOTTOM].x += rdx;
- vertices[V_BOTTOM].y += rdy;
-
- slopes[V_RIGHT].k = vertices[V_RIGHT].x *
- slopes[V_RIGHT].dy -
- vertices[V_RIGHT].y *
- slopes[V_RIGHT].dx;
- }
- y = miPolyBuildPoly (vertices, slopes, 4, x1, y1,
- left, right, &nleft, &nright, &h);
- pixel = (dashIndex & 1) ? bgPixel : fgPixel;
- miFillPolyHelper (pDrawable, pGC, pixel, spanData, y, h, left, right, nleft, nright);
-
- if (pGC->lineStyle == LineOnOffDash)
- {
- switch (pGC->capStyle)
- {
- case CapProjecting:
- vertices[V_BOTTOM] = saveBottom;
- vertices[V_RIGHT] = saveRight;
- slopes[V_RIGHT].k = saveK;
- break;
- case CapRound:
- if (!first)
- {
- if (dx < 0)
- {
- lcapFace.xa = -vertices[V_LEFT].x;
- lcapFace.ya = -vertices[V_LEFT].y;
- lcapFace.k = slopes[V_LEFT].k;
- }
- else
- {
- lcapFace.xa = vertices[V_TOP].x;
- lcapFace.ya = vertices[V_TOP].y;
- lcapFace.k = -slopes[V_LEFT].k;
- }
- miLineArc (pDrawable, pGC, pixel, spanData,
- &lcapFace, (LineFacePtr) NULL,
- lcenterx, lcentery, FALSE);
- }
- if (dx < 0)
- {
- rcapFace.xa = vertices[V_BOTTOM].x;
- rcapFace.ya = vertices[V_BOTTOM].y;
- rcapFace.k = slopes[V_RIGHT].k;
- }
- else
- {
- rcapFace.xa = -vertices[V_RIGHT].x;
- rcapFace.ya = -vertices[V_RIGHT].y;
- rcapFace.k = -slopes[V_RIGHT].k;
- }
- miLineArc (pDrawable, pGC, pixel, spanData,
- (LineFacePtr) NULL, &rcapFace,
- rcenterx, rcentery, FALSE);
- break;
- }
- }
- }
- LRemain -= dashRemain;
- ++dashIndex;
- if (dashIndex == pGC->numInDashList)
- dashIndex = 0;
- dashRemain = pDash[dashIndex];
-
- lcenterx = rcenterx;
- lcentery = rcentery;
-
- vertices[V_TOP] = vertices[V_RIGHT];
- vertices[V_LEFT] = vertices[V_BOTTOM];
- slopes[V_LEFT].k = -slopes[V_RIGHT].k;
- first = FALSE;
- }
-
- if (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1))
- {
- vertices[V_TOP].x -= dx;
- vertices[V_TOP].y -= dy;
-
- vertices[V_LEFT].x -= dx;
- vertices[V_LEFT].y -= dy;
-
- vertices[V_RIGHT].x = rdy;
- vertices[V_RIGHT].y = -rdx;
-
- vertices[V_BOTTOM].x = -rdy;
- vertices[V_BOTTOM].y = rdx;
-
-
- if (projectRight)
- {
- vertices[V_RIGHT].x += rdx;
- vertices[V_RIGHT].y += rdy;
-
- vertices[V_BOTTOM].x += rdx;
- vertices[V_BOTTOM].y += rdy;
- slopes[V_RIGHT].k = vertices[V_RIGHT].x *
- slopes[V_RIGHT].dy -
- vertices[V_RIGHT].y *
- slopes[V_RIGHT].dx;
- }
- else
- slopes[V_RIGHT].k = 0;
-
- if (!first && pGC->lineStyle == LineOnOffDash &&
- pGC->capStyle == CapProjecting)
- {
- vertices[V_TOP].x -= rdx;
- vertices[V_TOP].y -= rdy;
-
- vertices[V_LEFT].x -= rdx;
- vertices[V_LEFT].y -= rdy;
- slopes[V_LEFT].k = vertices[V_LEFT].x *
- slopes[V_LEFT].dy -
- vertices[V_LEFT].y *
- slopes[V_LEFT].dx;
- }
- else
- slopes[V_LEFT].k += dx * dx + dy * dy;
-
-
- y = miPolyBuildPoly (vertices, slopes, 4, x2, y2,
- left, right, &nleft, &nright, &h);
-
- pixel = (dashIndex & 1) ? pGC->bgPixel : pGC->fgPixel;
- miFillPolyHelper (pDrawable, pGC, pixel, spanData, y, h, left, right, nleft, nright);
- if (!first && pGC->lineStyle == LineOnOffDash &&
- pGC->capStyle == CapRound)
- {
- lcapFace.x = x2;
- lcapFace.y = y2;
- if (dx < 0)
- {
- lcapFace.xa = -vertices[V_LEFT].x;
- lcapFace.ya = -vertices[V_LEFT].y;
- lcapFace.k = slopes[V_LEFT].k;
- }
- else
- {
- lcapFace.xa = vertices[V_TOP].x;
- lcapFace.ya = vertices[V_TOP].y;
- lcapFace.k = -slopes[V_LEFT].k;
- }
- miLineArc (pDrawable, pGC, pixel, spanData,
- &lcapFace, (LineFacePtr) NULL,
- rcenterx, rcentery, FALSE);
- }
+ if (pGC->capStyle == CapRound) {
+ lcapFace.dx = dx;
+ lcapFace.dy = dy;
+ lcapFace.x = x1;
+ lcapFace.y = y1;
+
+ rcapFace.dx = -dx;
+ rcapFace.dy = -dy;
+ rcapFace.x = x1;
+ rcapFace.y = y1;
+ }
+ while (LRemain > dashRemain) {
+ dashDx = (dashRemain * dx) / L;
+ dashDy = (dashRemain * dy) / L;
+
+ rcenterx = lcenterx + dashDx;
+ rcentery = lcentery + dashDy;
+
+ vertices[V_RIGHT].x += dashDx;
+ vertices[V_RIGHT].y += dashDy;
+
+ vertices[V_BOTTOM].x += dashDx;
+ vertices[V_BOTTOM].y += dashDy;
+
+ slopes[V_RIGHT].k = vertices[V_RIGHT].x * dx + vertices[V_RIGHT].y * dy;
+
+ if (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1)) {
+ if (pGC->lineStyle == LineOnOffDash &&
+ pGC->capStyle == CapProjecting) {
+ saveRight = vertices[V_RIGHT];
+ saveBottom = vertices[V_BOTTOM];
+ saveK = slopes[V_RIGHT].k;
+
+ if (!first) {
+ vertices[V_TOP].x -= rdx;
+ vertices[V_TOP].y -= rdy;
+
+ vertices[V_LEFT].x -= rdx;
+ vertices[V_LEFT].y -= rdy;
+
+ slopes[V_LEFT].k = vertices[V_LEFT].x *
+ slopes[V_LEFT].dy -
+ vertices[V_LEFT].y * slopes[V_LEFT].dx;
+ }
+
+ vertices[V_RIGHT].x += rdx;
+ vertices[V_RIGHT].y += rdy;
+
+ vertices[V_BOTTOM].x += rdx;
+ vertices[V_BOTTOM].y += rdy;
+
+ slopes[V_RIGHT].k = vertices[V_RIGHT].x *
+ slopes[V_RIGHT].dy -
+ vertices[V_RIGHT].y * slopes[V_RIGHT].dx;
+ }
+ y = miPolyBuildPoly(vertices, slopes, 4, x1, y1,
+ left, right, &nleft, &nright, &h);
+ pixel = (dashIndex & 1) ? bgPixel : fgPixel;
+ miFillPolyHelper(pDrawable, pGC, pixel, spanData, y, h, left, right,
+ nleft, nright);
+
+ if (pGC->lineStyle == LineOnOffDash) {
+ switch (pGC->capStyle) {
+ case CapProjecting:
+ vertices[V_BOTTOM] = saveBottom;
+ vertices[V_RIGHT] = saveRight;
+ slopes[V_RIGHT].k = saveK;
+ break;
+ case CapRound:
+ if (!first) {
+ if (dx < 0) {
+ lcapFace.xa = -vertices[V_LEFT].x;
+ lcapFace.ya = -vertices[V_LEFT].y;
+ lcapFace.k = slopes[V_LEFT].k;
+ }
+ else {
+ lcapFace.xa = vertices[V_TOP].x;
+ lcapFace.ya = vertices[V_TOP].y;
+ lcapFace.k = -slopes[V_LEFT].k;
+ }
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ &lcapFace, (LineFacePtr) NULL,
+ lcenterx, lcentery, FALSE);
+ }
+ if (dx < 0) {
+ rcapFace.xa = vertices[V_BOTTOM].x;
+ rcapFace.ya = vertices[V_BOTTOM].y;
+ rcapFace.k = slopes[V_RIGHT].k;
+ }
+ else {
+ rcapFace.xa = -vertices[V_RIGHT].x;
+ rcapFace.ya = -vertices[V_RIGHT].y;
+ rcapFace.k = -slopes[V_RIGHT].k;
+ }
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ (LineFacePtr) NULL, &rcapFace,
+ rcenterx, rcentery, FALSE);
+ break;
+ }
+ }
+ }
+ LRemain -= dashRemain;
+ ++dashIndex;
+ if (dashIndex == pGC->numInDashList)
+ dashIndex = 0;
+ dashRemain = pDash[dashIndex];
+
+ lcenterx = rcenterx;
+ lcentery = rcentery;
+
+ vertices[V_TOP] = vertices[V_RIGHT];
+ vertices[V_LEFT] = vertices[V_BOTTOM];
+ slopes[V_LEFT].k = -slopes[V_RIGHT].k;
+ first = FALSE;
+ }
+
+ if (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1)) {
+ vertices[V_TOP].x -= dx;
+ vertices[V_TOP].y -= dy;
+
+ vertices[V_LEFT].x -= dx;
+ vertices[V_LEFT].y -= dy;
+
+ vertices[V_RIGHT].x = rdy;
+ vertices[V_RIGHT].y = -rdx;
+
+ vertices[V_BOTTOM].x = -rdy;
+ vertices[V_BOTTOM].y = rdx;
+
+ if (projectRight) {
+ vertices[V_RIGHT].x += rdx;
+ vertices[V_RIGHT].y += rdy;
+
+ vertices[V_BOTTOM].x += rdx;
+ vertices[V_BOTTOM].y += rdy;
+ slopes[V_RIGHT].k = vertices[V_RIGHT].x *
+ slopes[V_RIGHT].dy - vertices[V_RIGHT].y * slopes[V_RIGHT].dx;
+ }
+ else
+ slopes[V_RIGHT].k = 0;
+
+ if (!first && pGC->lineStyle == LineOnOffDash &&
+ pGC->capStyle == CapProjecting) {
+ vertices[V_TOP].x -= rdx;
+ vertices[V_TOP].y -= rdy;
+
+ vertices[V_LEFT].x -= rdx;
+ vertices[V_LEFT].y -= rdy;
+ slopes[V_LEFT].k = vertices[V_LEFT].x *
+ slopes[V_LEFT].dy - vertices[V_LEFT].y * slopes[V_LEFT].dx;
+ }
+ else
+ slopes[V_LEFT].k += dx * dx + dy * dy;
+
+ y = miPolyBuildPoly(vertices, slopes, 4, x2, y2,
+ left, right, &nleft, &nright, &h);
+
+ pixel = (dashIndex & 1) ? pGC->bgPixel : pGC->fgPixel;
+ miFillPolyHelper(pDrawable, pGC, pixel, spanData, y, h, left, right,
+ nleft, nright);
+ if (!first && pGC->lineStyle == LineOnOffDash &&
+ pGC->capStyle == CapRound) {
+ lcapFace.x = x2;
+ lcapFace.y = y2;
+ if (dx < 0) {
+ lcapFace.xa = -vertices[V_LEFT].x;
+ lcapFace.ya = -vertices[V_LEFT].y;
+ lcapFace.k = slopes[V_LEFT].k;
+ }
+ else {
+ lcapFace.xa = vertices[V_TOP].x;
+ lcapFace.ya = vertices[V_TOP].y;
+ lcapFace.k = -slopes[V_LEFT].k;
+ }
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ &lcapFace, (LineFacePtr) NULL, rcenterx, rcentery, FALSE);
+ }
}
dashRemain = ((double) dashRemain) - LRemain;
- if (dashRemain == 0)
- {
- dashIndex++;
- if (dashIndex == pGC->numInDashList)
- dashIndex = 0;
- dashRemain = pDash[dashIndex];
+ if (dashRemain == 0) {
+ dashIndex++;
+ if (dashIndex == pGC->numInDashList)
+ dashIndex = 0;
+ dashRemain = pDash[dashIndex];
}
leftFace->x = x1;
@@ -2014,180 +1821,161 @@ miWideDashSegment (
}
void
-miWideDash (DrawablePtr pDrawable, GCPtr pGC,
- int mode, int npt, DDXPointPtr pPts)
+miWideDash(DrawablePtr pDrawable, GCPtr pGC,
+ int mode, int npt, DDXPointPtr pPts)
{
- int x1, y1, x2, y2;
- unsigned long pixel;
- Bool projectLeft, projectRight;
- LineFaceRec leftFace, rightFace, prevRightFace;
- LineFaceRec firstFace;
- int first;
- int dashIndex, dashOffset;
- int prevDashIndex;
- SpanDataRec spanDataRec;
- SpanDataPtr spanData;
- Bool somethingDrawn = FALSE;
- Bool selfJoin;
- Bool endIsFg = FALSE, startIsFg = FALSE;
- Bool firstIsFg = FALSE, prevIsFg = FALSE;
+ int x1, y1, x2, y2;
+ unsigned long pixel;
+ Bool projectLeft, projectRight;
+ LineFaceRec leftFace, rightFace, prevRightFace;
+ LineFaceRec firstFace;
+ int first;
+ int dashIndex, dashOffset;
+ int prevDashIndex;
+ SpanDataRec spanDataRec;
+ SpanDataPtr spanData;
+ Bool somethingDrawn = FALSE;
+ Bool selfJoin;
+ Bool endIsFg = FALSE, startIsFg = FALSE;
+ Bool firstIsFg = FALSE, prevIsFg = FALSE;
#if 0
/* XXX backward compatibility */
- if (pGC->lineWidth == 0)
- {
- miZeroDashLine (pDrawable, pGC, mode, npt, pPts);
- return;
+ if (pGC->lineWidth == 0) {
+ miZeroDashLine(pDrawable, pGC, mode, npt, pPts);
+ return;
}
#endif
- if (pGC->lineStyle == LineDoubleDash &&
- (pGC->fillStyle == FillOpaqueStippled || pGC->fillStyle == FillTiled))
- {
- miWideLine (pDrawable, pGC, mode, npt, pPts);
- return;
+ if (pGC->lineStyle == LineDoubleDash &&
+ (pGC->fillStyle == FillOpaqueStippled || pGC->fillStyle == FillTiled)) {
+ miWideLine(pDrawable, pGC, mode, npt, pPts);
+ return;
}
if (npt == 0)
- return;
- spanData = miSetupSpanData (pGC, &spanDataRec, npt);
+ return;
+ spanData = miSetupSpanData(pGC, &spanDataRec, npt);
x2 = pPts->x;
y2 = pPts->y;
first = TRUE;
selfJoin = FALSE;
- if (mode == CoordModePrevious)
- {
- int nptTmp;
- DDXPointPtr pPtsTmp;
-
- x1 = x2;
- y1 = y2;
- nptTmp = npt;
- pPtsTmp = pPts + 1;
- while (--nptTmp)
- {
- x1 += pPtsTmp->x;
- y1 += pPtsTmp->y;
- ++pPtsTmp;
- }
- if (x2 == x1 && y2 == y1)
- selfJoin = TRUE;
- }
- else if (x2 == pPts[npt-1].x && y2 == pPts[npt-1].y)
- {
- selfJoin = TRUE;
+ if (mode == CoordModePrevious) {
+ int nptTmp;
+ DDXPointPtr pPtsTmp;
+
+ x1 = x2;
+ y1 = y2;
+ nptTmp = npt;
+ pPtsTmp = pPts + 1;
+ while (--nptTmp) {
+ x1 += pPtsTmp->x;
+ y1 += pPtsTmp->y;
+ ++pPtsTmp;
+ }
+ if (x2 == x1 && y2 == y1)
+ selfJoin = TRUE;
+ }
+ else if (x2 == pPts[npt - 1].x && y2 == pPts[npt - 1].y) {
+ selfJoin = TRUE;
}
projectLeft = pGC->capStyle == CapProjecting && !selfJoin;
projectRight = FALSE;
dashIndex = 0;
dashOffset = 0;
- miStepDash ((int)pGC->dashOffset, &dashIndex,
- pGC->dash, (int)pGC->numInDashList, &dashOffset);
- while (--npt)
- {
- x1 = x2;
- y1 = y2;
- ++pPts;
- x2 = pPts->x;
- y2 = pPts->y;
- if (mode == CoordModePrevious)
- {
- x2 += x1;
- y2 += y1;
- }
- if (x1 != x2 || y1 != y2)
- {
- somethingDrawn = TRUE;
- if (npt == 1 && pGC->capStyle == CapProjecting &&
- (!selfJoin || !firstIsFg))
- projectRight = TRUE;
- prevDashIndex = dashIndex;
- miWideDashSegment (pDrawable, pGC, spanData, &dashOffset, &dashIndex,
- x1, y1, x2, y2,
- projectLeft, projectRight, &leftFace, &rightFace);
- startIsFg = !(prevDashIndex & 1);
- endIsFg = (dashIndex & 1) ^ (dashOffset != 0);
- if (pGC->lineStyle == LineDoubleDash || startIsFg)
- {
- pixel = startIsFg ? pGC->fgPixel : pGC->bgPixel;
- if (first || (pGC->lineStyle == LineOnOffDash && !prevIsFg))
- {
- if (first && selfJoin)
- {
- firstFace = leftFace;
- firstIsFg = startIsFg;
- }
- else if (pGC->capStyle == CapRound)
- miLineArc (pDrawable, pGC, pixel, spanData,
- &leftFace, (LineFacePtr) NULL,
- (double)0.0, (double)0.0, TRUE);
- }
- else
- {
- miLineJoin (pDrawable, pGC, pixel, spanData, &leftFace,
- &prevRightFace);
- }
- }
- prevRightFace = rightFace;
- prevIsFg = endIsFg;
- first = FALSE;
- projectLeft = FALSE;
- }
- if (npt == 1 && somethingDrawn)
- {
- if (pGC->lineStyle == LineDoubleDash || endIsFg)
- {
- pixel = endIsFg ? pGC->fgPixel : pGC->bgPixel;
- if (selfJoin && (pGC->lineStyle == LineDoubleDash || firstIsFg))
- {
- miLineJoin (pDrawable, pGC, pixel, spanData, &firstFace,
- &rightFace);
- }
- else
- {
- if (pGC->capStyle == CapRound)
- miLineArc (pDrawable, pGC, pixel, spanData,
- (LineFacePtr) NULL, &rightFace,
- (double)0.0, (double)0.0, TRUE);
- }
- }
- else
- {
- /* glue a cap to the start of the line if
- * we're OnOffDash and ended on odd dash
- */
- if (selfJoin && firstIsFg)
- {
- pixel = pGC->fgPixel;
- if (pGC->capStyle == CapProjecting)
- miLineProjectingCap (pDrawable, pGC, pixel, spanData,
- &firstFace, TRUE,
- (double)0.0, (double)0.0, TRUE);
- else if (pGC->capStyle == CapRound)
- miLineArc (pDrawable, pGC, pixel, spanData,
- &firstFace, (LineFacePtr) NULL,
- (double)0.0, (double)0.0, TRUE);
- }
- }
- }
+ miStepDash((int) pGC->dashOffset, &dashIndex,
+ pGC->dash, (int) pGC->numInDashList, &dashOffset);
+ while (--npt) {
+ x1 = x2;
+ y1 = y2;
+ ++pPts;
+ x2 = pPts->x;
+ y2 = pPts->y;
+ if (mode == CoordModePrevious) {
+ x2 += x1;
+ y2 += y1;
+ }
+ if (x1 != x2 || y1 != y2) {
+ somethingDrawn = TRUE;
+ if (npt == 1 && pGC->capStyle == CapProjecting &&
+ (!selfJoin || !firstIsFg))
+ projectRight = TRUE;
+ prevDashIndex = dashIndex;
+ miWideDashSegment(pDrawable, pGC, spanData, &dashOffset, &dashIndex,
+ x1, y1, x2, y2,
+ projectLeft, projectRight, &leftFace, &rightFace);
+ startIsFg = !(prevDashIndex & 1);
+ endIsFg = (dashIndex & 1) ^ (dashOffset != 0);
+ if (pGC->lineStyle == LineDoubleDash || startIsFg) {
+ pixel = startIsFg ? pGC->fgPixel : pGC->bgPixel;
+ if (first || (pGC->lineStyle == LineOnOffDash && !prevIsFg)) {
+ if (first && selfJoin) {
+ firstFace = leftFace;
+ firstIsFg = startIsFg;
+ }
+ else if (pGC->capStyle == CapRound)
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ &leftFace, (LineFacePtr) NULL,
+ (double) 0.0, (double) 0.0, TRUE);
+ }
+ else {
+ miLineJoin(pDrawable, pGC, pixel, spanData, &leftFace,
+ &prevRightFace);
+ }
+ }
+ prevRightFace = rightFace;
+ prevIsFg = endIsFg;
+ first = FALSE;
+ projectLeft = FALSE;
+ }
+ if (npt == 1 && somethingDrawn) {
+ if (pGC->lineStyle == LineDoubleDash || endIsFg) {
+ pixel = endIsFg ? pGC->fgPixel : pGC->bgPixel;
+ if (selfJoin && (pGC->lineStyle == LineDoubleDash || firstIsFg)) {
+ miLineJoin(pDrawable, pGC, pixel, spanData, &firstFace,
+ &rightFace);
+ }
+ else {
+ if (pGC->capStyle == CapRound)
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ (LineFacePtr) NULL, &rightFace,
+ (double) 0.0, (double) 0.0, TRUE);
+ }
+ }
+ else {
+ /* glue a cap to the start of the line if
+ * we're OnOffDash and ended on odd dash
+ */
+ if (selfJoin && firstIsFg) {
+ pixel = pGC->fgPixel;
+ if (pGC->capStyle == CapProjecting)
+ miLineProjectingCap(pDrawable, pGC, pixel, spanData,
+ &firstFace, TRUE,
+ (double) 0.0, (double) 0.0, TRUE);
+ else if (pGC->capStyle == CapRound)
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ &firstFace, (LineFacePtr) NULL,
+ (double) 0.0, (double) 0.0, TRUE);
+ }
+ }
+ }
}
/* handle crock where all points are coincident */
- if (!somethingDrawn && (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1)))
- {
- /* not the same as endIsFg computation above */
- pixel = (dashIndex & 1) ? pGC->bgPixel : pGC->fgPixel;
- switch (pGC->capStyle) {
- case CapRound:
- miLineArc (pDrawable, pGC, pixel, spanData,
- (LineFacePtr) NULL, (LineFacePtr) NULL,
- (double)x2, (double)y2,
- FALSE);
- break;
- case CapProjecting:
- x1 = pGC->lineWidth;
- miFillRectPolyHelper (pDrawable, pGC, pixel, spanData,
- x2 - (x1 >> 1), y2 - (x1 >> 1), x1, x1);
- break;
- }
+ if (!somethingDrawn &&
+ (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1))) {
+ /* not the same as endIsFg computation above */
+ pixel = (dashIndex & 1) ? pGC->bgPixel : pGC->fgPixel;
+ switch (pGC->capStyle) {
+ case CapRound:
+ miLineArc(pDrawable, pGC, pixel, spanData,
+ (LineFacePtr) NULL, (LineFacePtr) NULL,
+ (double) x2, (double) y2, FALSE);
+ break;
+ case CapProjecting:
+ x1 = pGC->lineWidth;
+ miFillRectPolyHelper(pDrawable, pGC, pixel, spanData,
+ x2 - (x1 >> 1), y2 - (x1 >> 1), x1, x1);
+ break;
+ }
}
if (spanData)
- miCleanupSpanData (pDrawable, pGC, spanData);
+ miCleanupSpanData(pDrawable, pGC, spanData);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 18:37:35 +0000