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Changed reverse shape list to tail cached variant

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This commit is contained in:
daniel-starke 2017-04-21 22:05:26 +02:00
parent 3f40cbc53e
commit 096f60a5c5
1 changed files with 17 additions and 25 deletions
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42
src/nanosvg.h
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@ -145,7 +145,7 @@ typedef struct NSVGshape
char strokeDashCount; // Number of dash values in dash array.
char strokeLineJoin; // Stroke join type.
char strokeLineCap; // Stroke cap type.
float miterLimit; // Miter limit
float miterLimit; // Miter limit
char fillRule; // Fill rule, see NSVGfillRule.
unsigned char flags; // Logical or of NSVG_FLAGS_* flags
float bounds[4]; // Tight bounding box of the shape [minx,miny,maxx,maxy].
@ -414,7 +414,7 @@ typedef struct NSVGattrib
int strokeDashCount;
char strokeLineJoin;
char strokeLineCap;
float miterLimit;
float miterLimit;
char fillRule;
float fontSize;
unsigned int stopColor;
@ -435,6 +435,7 @@ typedef struct NSVGparser
NSVGpath* plist;
NSVGimage* image;
NSVGgradientData* gradients;
NSVGshape* shapesTail;
float viewMinx, viewMiny, viewWidth, viewHeight;
int alignX, alignY, alignType;
float dpi;
@ -921,7 +922,7 @@ static void nsvg__addShape(NSVGparser* p)
{
NSVGattrib* attr = nsvg__getAttr(p);
float scale = 1.0f;
NSVGshape *shape;
NSVGshape* shape;
NSVGpath* path;
int i;
@ -996,9 +997,12 @@ static void nsvg__addShape(NSVGparser* p)
// Set flags
shape->flags = (attr->visible ? NSVG_FLAGS_VISIBLE : 0x00);
// Add to head due to performance, reverse list later
shape->next = p->image->shapes;
p->image->shapes = shape;
// Add to tail
if (p->image->shapes == NULL)
p->image->shapes = shape;
else
p->shapesTail->next = shape;
p->shapesTail = shape;
return;
@ -2151,23 +2155,23 @@ static void nsvg__parsePath(NSVGparser* p, const char** attr)
// Moveto can be followed by multiple coordinate pairs,
// which should be treated as linetos.
cmd = (cmd == 'm') ? 'l' : 'L';
rargs = nsvg__getArgsPerElement(cmd);
cpx2 = cpx; cpy2 = cpy;
rargs = nsvg__getArgsPerElement(cmd);
cpx2 = cpx; cpy2 = cpy;
break;
case 'l':
case 'L':
nsvg__pathLineTo(p, &cpx, &cpy, args, cmd == 'l' ? 1 : 0);
cpx2 = cpx; cpy2 = cpy;
cpx2 = cpx; cpy2 = cpy;
break;
case 'H':
case 'h':
nsvg__pathHLineTo(p, &cpx, &cpy, args, cmd == 'h' ? 1 : 0);
cpx2 = cpx; cpy2 = cpy;
cpx2 = cpx; cpy2 = cpy;
break;
case 'V':
case 'v':
nsvg__pathVLineTo(p, &cpx, &cpy, args, cmd == 'v' ? 1 : 0);
cpx2 = cpx; cpy2 = cpy;
cpx2 = cpx; cpy2 = cpy;
break;
case 'C':
case 'c':
@ -2188,13 +2192,13 @@ static void nsvg__parsePath(NSVGparser* p, const char** attr)
case 'A':
case 'a':
nsvg__pathArcTo(p, &cpx, &cpy, args, cmd == 'a' ? 1 : 0);
cpx2 = cpx; cpy2 = cpy;
cpx2 = cpx; cpy2 = cpy;
break;
default:
if (nargs >= 2) {
cpx = args[nargs-2];
cpy = args[nargs-1];
cpx2 = cpx; cpy2 = cpy;
cpx2 = cpx; cpy2 = cpy;
}
break;
}
@ -2787,7 +2791,6 @@ NSVGimage* nsvgParse(char* input, const char* units, float dpi)
{
NSVGparser* p;
NSVGimage* ret = 0;
NSVGshape* cur, *prev, *tmp;
p = nsvg__createParser();
if (p == NULL) {
@ -2797,17 +2800,6 @@ NSVGimage* nsvgParse(char* input, const char* units, float dpi)
nsvg__parseXML(input, nsvg__startElement, nsvg__endElement, nsvg__content, p);
// Reverse the list of shapes to match SVG order
cur = p->image->shapes;
prev = NULL;
while (cur != NULL) {
tmp = cur;
cur = cur->next;
tmp->next = prev;
prev = tmp;
}
if (prev != NULL) p->image->shapes = prev;
// Scale to viewBox
nsvg__scaleToViewbox(p, units);