frederik
/
xserver
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

miwideline: Factor out span buffer allocation. 

Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Jamey Sharp 2010-05-08 13:38:00 -07:00
parent c9e7ca4404
commit 83f7ec9727
1 changed files with 32 additions and 74 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

106
mi/miwideline.c
View File

@ -52,6 +52,21 @@ from The Open Group.
#include "miwideline.h"
#include "mi.h"
static Bool
InitSpans(Spans *spans, size_t nspans)
{
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 TRUE;
}
/*
* interface data to span-merging polygon filler
*/
@ -110,9 +125,7 @@ miFillPolyHelper (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
int left_height = 0, right_height = 0;
DDXPointPtr ppt;
DDXPointPtr pptInit = NULL;
int *pwidth;
int *pwidthInit = NULL;
XID oldPixel;
int xorg;
Spans spanRec;
@ -120,19 +133,12 @@ miFillPolyHelper (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
left_height = 0;
right_height = 0;
if (!InitSpans(&spanRec, overall_height))
return;
ppt = spanRec.points;
pwidth = spanRec.widths;
if (!spanData)
{
pptInit = malloc(overall_height * sizeof(*ppt));
if (!pptInit)
return;
pwidthInit = malloc(overall_height * sizeof(*pwidth));
if (!pwidthInit)
{
free(pptInit);
return;
}
ppt = pptInit;
pwidth = pwidthInit;
oldPixel = pGC->fgPixel;
if (pixel != oldPixel)
{
@ -141,20 +147,6 @@ miFillPolyHelper (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
ValidateGC (pDrawable, pGC);
}
}
else
{
spanRec.points = malloc(overall_height * sizeof (*ppt));
if (!spanRec.points)
return;
spanRec.widths = malloc(overall_height * sizeof (int));
if (!spanRec.widths)
{
free(spanRec.points);
return;
}
ppt = spanRec.points;
pwidth = spanRec.widths;
}
xorg = 0;
if (pGC->miTranslate)
@ -226,11 +218,12 @@ miFillPolyHelper (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
}
}
}
spanRec.count = ppt - spanRec.points;
if (!spanData)
{
(*pGC->ops->FillSpans) (pDrawable, pGC, ppt - pptInit, pptInit, pwidthInit, TRUE);
free(pwidthInit);
free(pptInit);
(*pGC->ops->FillSpans) (pDrawable, pGC, spanRec.count, spanRec.points, spanRec.widths, TRUE);
free(spanRec.widths);
free(spanRec.points);
if (pixel != oldPixel)
{
dixChangeGC (NullClient, pGC, GCForeground, &oldPixel, NULL);
@ -238,10 +231,7 @@ miFillPolyHelper (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
}
}
else
{
spanRec.count = ppt - spanRec.points;
AppendSpanGroup (pGC, pixel, &spanRec, spanData);
}
}
static void
@ -283,15 +273,8 @@ miFillRectPolyHelper (
}
else
{
spanRec.points = malloc(h * sizeof (*ppt));
if (!spanRec.points)
if (!InitSpans(&spanRec, h))
return;
spanRec.widths = malloc(h * sizeof (int));
if (!spanRec.widths)
{
free(spanRec.points);
return;
}
ppt = spanRec.points;
pwidth = spanRec.widths;
@ -1058,8 +1041,6 @@ miLineArc (
double yorg,
Bool isInt)
{
DDXPointPtr points;
int *widths;
int xorgi = 0, yorgi = 0;
XID oldPixel;
Spans spanRec;
@ -1105,17 +1086,10 @@ miLineArc (
}
isInt = FALSE;
}
if (!InitSpans(&spanRec, pGC->lineWidth))
return;
if (!spanData)
{
points = malloc(sizeof(DDXPointRec) * pGC->lineWidth);
if (!points)
return;
widths = malloc(sizeof(int) * pGC->lineWidth);
if (!widths)
{
free(points);
return;
}
oldPixel = pGC->fgPixel;
if (pixel != oldPixel)
{
@ -1124,32 +1098,19 @@ miLineArc (
ValidateGC (pDraw, pGC);
}
}
else
{
points = malloc(pGC->lineWidth * sizeof (DDXPointRec));
if (!points)
return;
widths = malloc(pGC->lineWidth * sizeof (int));
if (!widths)
{
free(points);
return;
}
spanRec.points = points;
spanRec.widths = widths;
}
if (isInt)
n = miLineArcI(pDraw, pGC, xorgi, yorgi, points, widths);
n = miLineArcI(pDraw, pGC, xorgi, yorgi, spanRec.points, spanRec.widths);
else
n = miLineArcD(pDraw, pGC, xorg, yorg, points, widths,
n = miLineArcD(pDraw, pGC, xorg, yorg, spanRec.points, spanRec.widths,
&edge1, edgey1, edgeleft1,
&edge2, edgey2, edgeleft2);
spanRec.count = n;
if (!spanData)
{
(*pGC->ops->FillSpans)(pDraw, pGC, n, points, widths, TRUE);
free(widths);
free(points);
(*pGC->ops->FillSpans)(pDraw, pGC, spanRec.count, spanRec.points, spanRec.widths, TRUE);
free(spanRec.widths);
free(spanRec.points);
if (pixel != oldPixel)
{
dixChangeGC(NullClient, pGC, GCForeground, &oldPixel, NULL);
@ -1157,10 +1118,7 @@ miLineArc (
}
}
else
{
spanRec.count = n;
AppendSpanGroup (pGC, pixel, &spanRec, spanData);
}
}
static void