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gui/SOURCES/0001-miarc-Style-cleanup-fo...

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From 9426c5500b72e1fe004fef4c3b259023c4ec49f7 Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Wed, 1 Mar 2017 16:13:57 -0500
Subject: [PATCH 1/3] miarc: Style cleanup for miWideArc
Outdent, normalize comment formatting, and use 'goto out' idiom for
error paths. No functional change.
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
---
mi/miarc.c | 368 ++++++++++++++++++++++++++++++-------------------------------
1 file changed, 179 insertions(+), 189 deletions(-)
diff --git a/mi/miarc.c b/mi/miarc.c
index 2588ee48a..fed5c9fa3 100644
--- a/mi/miarc.c
+++ b/mi/miarc.c
@@ -894,7 +894,7 @@ miWideArc(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc * parcs)
int xMin, xMax, yMin, yMax;
int pixmapWidth = 0, pixmapHeight = 0;
int xOrg = 0, yOrg = 0;
- int width;
+ int width = pGC->lineWidth;
Bool fTricky;
DrawablePtr pDrawTo;
CARD32 fg, bg;
@@ -904,210 +904,200 @@ miWideArc(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc * parcs)
int iphase;
int halfWidth;
- width = pGC->lineWidth;
if (width == 0 && pGC->lineStyle == LineSolid) {
for (i = narcs, parc = parcs; --i >= 0; parc++)
- miArcSegment(pDraw, pGC, *parc, (miArcFacePtr) 0, (miArcFacePtr) 0);
+ miArcSegment(pDraw, pGC, *parc, NULL, NULL);
fillSpans(pDraw, pGC);
+ return;
}
- else {
- if ((pGC->lineStyle == LineSolid) && narcs) {
- while (parcs->width && parcs->height &&
- (parcs->angle2 >= FULLCIRCLE ||
- parcs->angle2 <= -FULLCIRCLE)) {
- miFillWideEllipse(pDraw, pGC, parcs);
- if (!--narcs)
- return;
- parcs++;
- }
- }
-
- /* Set up pDrawTo and pGCTo based on the rasterop */
- switch (pGC->alu) {
- case GXclear: /* 0 */
- case GXcopy: /* src */
- case GXcopyInverted: /* NOT src */
- case GXset: /* 1 */
- fTricky = FALSE;
- pDrawTo = pDraw;
- pGCTo = pGC;
- break;
- default:
- fTricky = TRUE;
-
- /* find bounding box around arcs */
- xMin = yMin = MAXSHORT;
- xMax = yMax = MINSHORT;
-
- for (i = narcs, parc = parcs; --i >= 0; parc++) {
- xMin = min(xMin, parc->x);
- yMin = min(yMin, parc->y);
- xMax = max(xMax, (parc->x + (int) parc->width));
- yMax = max(yMax, (parc->y + (int) parc->height));
- }
-
- /* expand box to deal with line widths */
- halfWidth = (width + 1) / 2;
- xMin -= halfWidth;
- yMin -= halfWidth;
- xMax += halfWidth;
- yMax += halfWidth;
-
- /* compute pixmap size; limit it to size of drawable */
- xOrg = max(xMin, 0);
- yOrg = max(yMin, 0);
- pixmapWidth = min(xMax, pDraw->width) - xOrg;
- pixmapHeight = min(yMax, pDraw->height) - yOrg;
-
- /* if nothing left, return */
- if ((pixmapWidth <= 0) || (pixmapHeight <= 0))
- return;
-
- for (i = narcs, parc = parcs; --i >= 0; parc++) {
- parc->x -= xOrg;
- parc->y -= yOrg;
- }
- if (pGC->miTranslate) {
- xOrg += pDraw->x;
- yOrg += pDraw->y;
- }
-
- /* set up scratch GC */
-
- pGCTo = GetScratchGC(1, pDraw->pScreen);
- if (!pGCTo)
- return;
- {
- ChangeGCVal gcvals[6];
-
- gcvals[0].val = GXcopy;
- gcvals[1].val = 1;
- gcvals[2].val = 0;
- gcvals[3].val = pGC->lineWidth;
- gcvals[4].val = pGC->capStyle;
- gcvals[5].val = pGC->joinStyle;
- ChangeGC(NullClient, pGCTo, GCFunction |
- GCForeground | GCBackground | GCLineWidth |
- GCCapStyle | GCJoinStyle, gcvals);
- }
- /* allocate a 1 bit deep pixmap of the appropriate size, and
- * validate it */
- pDrawTo = (DrawablePtr) (*pDraw->pScreen->CreatePixmap)
- (pDraw->pScreen, pixmapWidth, pixmapHeight, 1,
- CREATE_PIXMAP_USAGE_SCRATCH);
- if (!pDrawTo) {
- FreeScratchGC(pGCTo);
+ if ((pGC->lineStyle == LineSolid) && narcs) {
+ while (parcs->width && parcs->height &&
+ (parcs->angle2 >= FULLCIRCLE || parcs->angle2 <= -FULLCIRCLE)) {
+ miFillWideEllipse(pDraw, pGC, parcs);
+ if (!--narcs)
return;
- }
- ValidateGC(pDrawTo, pGCTo);
- miClearDrawable(pDrawTo, pGCTo);
+ parcs++;
}
+ }
- fg = pGC->fgPixel;
- bg = pGC->bgPixel;
- if ((pGC->fillStyle == FillTiled) ||
- (pGC->fillStyle == FillOpaqueStippled))
- bg = fg; /* the protocol sez these don't cause color changes */
+ /* Set up pDrawTo and pGCTo based on the rasterop */
+ switch (pGC->alu) {
+ case GXclear: /* 0 */
+ case GXcopy: /* src */
+ case GXcopyInverted: /* NOT src */
+ case GXset: /* 1 */
+ fTricky = FALSE;
+ pDrawTo = pDraw;
+ pGCTo = pGC;
+ break;
+ default:
+ fTricky = TRUE;
+
+ /* find bounding box around arcs */
+ xMin = yMin = MAXSHORT;
+ xMax = yMax = MINSHORT;
+
+ for (i = narcs, parc = parcs; --i >= 0; parc++) {
+ xMin = min(xMin, parc->x);
+ yMin = min(yMin, parc->y);
+ xMax = max(xMax, (parc->x + (int) parc->width));
+ yMax = max(yMax, (parc->y + (int) parc->height));
+ }
+
+ /* expand box to deal with line widths */
+ halfWidth = (width + 1) / 2;
+ xMin -= halfWidth;
+ yMin -= halfWidth;
+ xMax += halfWidth;
+ yMax += halfWidth;
+
+ /* compute pixmap size; limit it to size of drawable */
+ xOrg = max(xMin, 0);
+ yOrg = max(yMin, 0);
+ pixmapWidth = min(xMax, pDraw->width) - xOrg;
+ pixmapHeight = min(yMax, pDraw->height) - yOrg;
+
+ /* if nothing left, return */
+ if ((pixmapWidth <= 0) || (pixmapHeight <= 0))
+ return;
- polyArcs = miComputeArcs(parcs, narcs, pGC);
+ for (i = narcs, parc = parcs; --i >= 0; parc++) {
+ parc->x -= xOrg;
+ parc->y -= yOrg;
+ }
+ if (pGC->miTranslate) {
+ xOrg += pDraw->x;
+ yOrg += pDraw->y;
+ }
- if (!polyArcs) {
- if (fTricky) {
- (*pDraw->pScreen->DestroyPixmap) ((PixmapPtr) pDrawTo);
- FreeScratchGC(pGCTo);
- }
+ /* set up scratch GC */
+ pGCTo = GetScratchGC(1, pDraw->pScreen);
+ if (!pGCTo)
+ return;
+ {
+ ChangeGCVal gcvals[6];
+
+ gcvals[0].val = GXcopy;
+ gcvals[1].val = 1;
+ gcvals[2].val = 0;
+ gcvals[3].val = pGC->lineWidth;
+ gcvals[4].val = pGC->capStyle;
+ gcvals[5].val = pGC->joinStyle;
+ ChangeGC(NullClient, pGCTo, GCFunction |
+ GCForeground | GCBackground | GCLineWidth |
+ GCCapStyle | GCJoinStyle, gcvals);
+ }
+
+ /* allocate a bitmap of the appropriate size, and validate it */
+ pDrawTo = (DrawablePtr) (*pDraw->pScreen->CreatePixmap)
+ (pDraw->pScreen, pixmapWidth, pixmapHeight, 1,
+ CREATE_PIXMAP_USAGE_SCRATCH);
+ if (!pDrawTo) {
+ FreeScratchGC(pGCTo);
return;
}
-
- cap[0] = cap[1] = 0;
- join[0] = join[1] = 0;
- for (iphase = ((pGC->lineStyle == LineDoubleDash) ? 1 : 0);
- iphase >= 0; iphase--) {
- ChangeGCVal gcval;
-
- if (iphase == 1) {
- gcval.val = bg;
- ChangeGC(NullClient, pGC, GCForeground, &gcval);
- ValidateGC(pDraw, pGC);
- }
- else if (pGC->lineStyle == LineDoubleDash) {
- gcval.val = fg;
- ChangeGC(NullClient, pGC, GCForeground, &gcval);
- ValidateGC(pDraw, pGC);
- }
- for (i = 0; i < polyArcs[iphase].narcs; i++) {
- miArcDataPtr arcData;
-
- arcData = &polyArcs[iphase].arcs[i];
- miArcSegment(pDrawTo, pGCTo, arcData->arc,
- &arcData->bounds[RIGHT_END],
- &arcData->bounds[LEFT_END]);
- if (polyArcs[iphase].arcs[i].render) {
- fillSpans(pDrawTo, pGCTo);
- /*
- * don't cap self-joining arcs
- */
- if (polyArcs[iphase].arcs[i].selfJoin &&
- cap[iphase] < polyArcs[iphase].arcs[i].cap)
- cap[iphase]++;
- while (cap[iphase] < polyArcs[iphase].arcs[i].cap) {
- int arcIndex, end;
- miArcDataPtr arcData0;
-
- arcIndex = polyArcs[iphase].caps[cap[iphase]].arcIndex;
- end = polyArcs[iphase].caps[cap[iphase]].end;
- arcData0 = &polyArcs[iphase].arcs[arcIndex];
- miArcCap(pDrawTo, pGCTo,
- &arcData0->bounds[end], end,
- arcData0->arc.x, arcData0->arc.y,
- (double) arcData0->arc.width / 2.0,
- (double) arcData0->arc.height / 2.0);
- ++cap[iphase];
- }
- while (join[iphase] < polyArcs[iphase].arcs[i].join) {
- int arcIndex0, arcIndex1, end0, end1;
- int phase0, phase1;
- miArcDataPtr arcData0, arcData1;
- miArcJoinPtr joinp;
-
- joinp = &polyArcs[iphase].joins[join[iphase]];
- arcIndex0 = joinp->arcIndex0;
- end0 = joinp->end0;
- arcIndex1 = joinp->arcIndex1;
- end1 = joinp->end1;
- phase0 = joinp->phase0;
- phase1 = joinp->phase1;
- arcData0 = &polyArcs[phase0].arcs[arcIndex0];
- arcData1 = &polyArcs[phase1].arcs[arcIndex1];
- miArcJoin(pDrawTo, pGCTo,
- &arcData0->bounds[end0],
- &arcData1->bounds[end1],
- arcData0->arc.x, arcData0->arc.y,
- (double) arcData0->arc.width / 2.0,
- (double) arcData0->arc.height / 2.0,
- arcData1->arc.x, arcData1->arc.y,
- (double) arcData1->arc.width / 2.0,
- (double) arcData1->arc.height / 2.0);
- ++join[iphase];
- }
- if (fTricky) {
- if (pGC->serialNumber != pDraw->serialNumber)
- ValidateGC(pDraw, pGC);
- (*pGC->ops->PushPixels) (pGC, (PixmapPtr) pDrawTo,
- pDraw, pixmapWidth,
- pixmapHeight, xOrg, yOrg);
- miClearDrawable((DrawablePtr) pDrawTo, pGCTo);
- }
+ ValidateGC(pDrawTo, pGCTo);
+ miClearDrawable(pDrawTo, pGCTo);
+ }
+
+ fg = pGC->fgPixel;
+ bg = pGC->bgPixel;
+
+ /* the protocol sez these don't cause color changes */
+ if ((pGC->fillStyle == FillTiled) ||
+ (pGC->fillStyle == FillOpaqueStippled))
+ bg = fg;
+
+ polyArcs = miComputeArcs(parcs, narcs, pGC);
+ if (!polyArcs)
+ goto out;
+
+ cap[0] = cap[1] = 0;
+ join[0] = join[1] = 0;
+ for (iphase = (pGC->lineStyle == LineDoubleDash); iphase >= 0; iphase--) {
+ ChangeGCVal gcval;
+
+ if (iphase == 1) {
+ gcval.val = bg;
+ ChangeGC(NullClient, pGC, GCForeground, &gcval);
+ ValidateGC(pDraw, pGC);
+ }
+ else if (pGC->lineStyle == LineDoubleDash) {
+ gcval.val = fg;
+ ChangeGC(NullClient, pGC, GCForeground, &gcval);
+ ValidateGC(pDraw, pGC);
+ }
+ for (i = 0; i < polyArcs[iphase].narcs; i++) {
+ miArcDataPtr arcData;
+
+ arcData = &polyArcs[iphase].arcs[i];
+ miArcSegment(pDrawTo, pGCTo, arcData->arc,
+ &arcData->bounds[RIGHT_END],
+ &arcData->bounds[LEFT_END]);
+ if (polyArcs[iphase].arcs[i].render) {
+ fillSpans(pDrawTo, pGCTo);
+ /* don't cap self-joining arcs */
+ if (polyArcs[iphase].arcs[i].selfJoin &&
+ cap[iphase] < polyArcs[iphase].arcs[i].cap)
+ cap[iphase]++;
+ while (cap[iphase] < polyArcs[iphase].arcs[i].cap) {
+ int arcIndex, end;
+ miArcDataPtr arcData0;
+
+ arcIndex = polyArcs[iphase].caps[cap[iphase]].arcIndex;
+ end = polyArcs[iphase].caps[cap[iphase]].end;
+ arcData0 = &polyArcs[iphase].arcs[arcIndex];
+ miArcCap(pDrawTo, pGCTo,
+ &arcData0->bounds[end], end,
+ arcData0->arc.x, arcData0->arc.y,
+ (double) arcData0->arc.width / 2.0,
+ (double) arcData0->arc.height / 2.0);
+ ++cap[iphase];
+ }
+ while (join[iphase] < polyArcs[iphase].arcs[i].join) {
+ int arcIndex0, arcIndex1, end0, end1;
+ int phase0, phase1;
+ miArcDataPtr arcData0, arcData1;
+ miArcJoinPtr joinp;
+
+ joinp = &polyArcs[iphase].joins[join[iphase]];
+ arcIndex0 = joinp->arcIndex0;
+ end0 = joinp->end0;
+ arcIndex1 = joinp->arcIndex1;
+ end1 = joinp->end1;
+ phase0 = joinp->phase0;
+ phase1 = joinp->phase1;
+ arcData0 = &polyArcs[phase0].arcs[arcIndex0];
+ arcData1 = &polyArcs[phase1].arcs[arcIndex1];
+ miArcJoin(pDrawTo, pGCTo,
+ &arcData0->bounds[end0],
+ &arcData1->bounds[end1],
+ arcData0->arc.x, arcData0->arc.y,
+ (double) arcData0->arc.width / 2.0,
+ (double) arcData0->arc.height / 2.0,
+ arcData1->arc.x, arcData1->arc.y,
+ (double) arcData1->arc.width / 2.0,
+ (double) arcData1->arc.height / 2.0);
+ ++join[iphase];
+ }
+ if (fTricky) {
+ if (pGC->serialNumber != pDraw->serialNumber)
+ ValidateGC(pDraw, pGC);
+ (*pGC->ops->PushPixels) (pGC, (PixmapPtr) pDrawTo,
+ pDraw, pixmapWidth,
+ pixmapHeight, xOrg, yOrg);
+ miClearDrawable((DrawablePtr) pDrawTo, pGCTo);
}
}
}
- miFreeArcs(polyArcs, pGC);
+ }
+ miFreeArcs(polyArcs, pGC);
- if (fTricky) {
- (*pGCTo->pScreen->DestroyPixmap) ((PixmapPtr) pDrawTo);
- FreeScratchGC(pGCTo);
- }
+out:
+ if (fTricky) {
+ (*pGCTo->pScreen->DestroyPixmap) ((PixmapPtr) pDrawTo);
+ FreeScratchGC(pGCTo);
}
}
--
2.12.0