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loader svg: code cleanup

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Use array instead of individual dynamic array implementation.
This also fixes wrong polygon & polyline data access during copy & paste...
This commit is contained in:
Hermet Park 2023-07-03 16:20:20 +09:00 • committed by Hermet Park
parent 95ebbe4339
commit d72d6aa51f
3 changed files with 21 additions and 50 deletions
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50
src/loaders/svg/tvgSvgLoader.cpp
View file

@ -1611,39 +1611,11 @@ static SvgNode* _createEllipseNode(SvgLoaderData* loader, SvgNode* parent, const
} }
static bool _attrParsePolygonPoints(const char* str, float** points, int* ptCount) static bool _attrParsePolygonPoints(const char* str, SvgPolygonNode* polygon)
{ {
float tmp[50];
int tmpCount = 0;
int count = 0;
float num; float num;
float *pointArray = nullptr, *tmpArray; while (_parseNumber(&str, &num)) polygon->pts.push(num);
while (_parseNumber(&str, &num)) {
tmp[tmpCount++] = num;
if (tmpCount == 50) {
tmpArray = (float*)realloc(pointArray, (count + tmpCount) * sizeof(float));
if (!tmpArray) goto error_alloc;
pointArray = tmpArray;
memcpy(&pointArray[count], tmp, tmpCount * sizeof(float));
count += tmpCount;
tmpCount = 0;
}
}
if (tmpCount > 0) {
tmpArray = (float*)realloc(pointArray, (count + tmpCount) * sizeof(float));
if (!tmpArray) goto error_alloc;
pointArray = tmpArray;
memcpy(&pointArray[count], tmp, tmpCount * sizeof(float));
count += tmpCount;
}
*ptCount = count;
*points = pointArray;
return true; return true;
error_alloc:
return false;
} }
@ -1660,7 +1632,7 @@ static bool _attrParsePolygonNode(void* data, const char* key, const char* value
else polygon = &(node->node.polyline); else polygon = &(node->node.polyline);
if (!strcmp(key, "points")) { if (!strcmp(key, "points")) {
return _attrParsePolygonPoints(value, &polygon->points, &polygon->pointsCount); return _attrParsePolygonPoints(value, polygon);
} else if (!strcmp(key, "style")) { } else if (!strcmp(key, "style")) {
return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader); return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
} else if (!strcmp(key, "clip-path")) { } else if (!strcmp(key, "clip-path")) {
@ -2936,16 +2908,14 @@ static void _copyAttr(SvgNode* to, const SvgNode* from)
break; break;
} }
case SvgNodeType::Polygon: { case SvgNodeType::Polygon: {
if ((to->node.polygon.pointsCount = from->node.polygon.pointsCount)) { if (to->node.polygon.pts.count = from->node.polygon.pts.count) {
to->node.polygon.points = (float*)malloc(to->node.polygon.pointsCount * sizeof(float)); to->node.polygon.pts = from->node.polygon.pts;
memcpy(to->node.polygon.points, from->node.polygon.points, to->node.polygon.pointsCount * sizeof(float));
} }
break; break;
} }
case SvgNodeType::Polyline: { case SvgNodeType::Polyline: {
if ((to->node.polyline.pointsCount = from->node.polyline.pointsCount)) { if (to->node.polyline.pts.count = from->node.polyline.pts.count) {
to->node.polyline.points = (float*)malloc(to->node.polyline.pointsCount * sizeof(float)); to->node.polyline.pts = from->node.polyline.pts;
memcpy(to->node.polyline.points, from->node.polyline.points, to->node.polyline.pointsCount * sizeof(float));
} }
break; break;
} }
@ -3236,7 +3206,7 @@ static void _inefficientNodeCheck(TVG_UNUSED SvgNode* node)
} }
case SvgNodeType::Polygon: case SvgNodeType::Polygon:
case SvgNodeType::Polyline: { case SvgNodeType::Polyline: {
if (node->node.polygon.pointsCount < 2) TVGLOG("SVG", "Inefficient elements used [Invalid Polygon][Node Type : %s]", type); if (node->node.polygon.pts.count < 2) TVGLOG("SVG", "Inefficient elements used [Invalid Polygon][Node Type : %s]", type);
break; break;
} }
case SvgNodeType::Circle: { case SvgNodeType::Circle: {
@ -3392,11 +3362,11 @@ static void _freeNode(SvgNode* node)
break; break;
} }
case SvgNodeType::Polygon: { case SvgNodeType::Polygon: {
free(node->node.polygon.points); free(node->node.polygon.pts.data);
break; break;
} }
case SvgNodeType::Polyline: { case SvgNodeType::Polyline: {
free(node->node.polyline.points); free(node->node.polyline.pts.data);
break; break;
} }
case SvgNodeType::Doc: { case SvgNodeType::Doc: {

3
src/loaders/svg/tvgSvgLoaderCommon.h
View file

@ -353,8 +353,7 @@ struct SvgPathNode
struct SvgPolygonNode struct SvgPolygonNode
{ {
int pointsCount; Array<float> pts;
float* points;
}; };
struct SvgClipNode struct SvgClipNode

18
src/loaders/svg/tvgSvgSceneBuilder.cpp
View file

@ -402,19 +402,21 @@ static bool _appendShape(SvgNode* node, Shape* shape, const Box& vBox, const str
break; break;
} }
case SvgNodeType::Polygon: { case SvgNodeType::Polygon: {
if (node->node.polygon.pointsCount < 2) break; if (node->node.polygon.pts.count < 2) break;
shape->moveTo(node->node.polygon.points[0], node->node.polygon.points[1]); auto pts = node->node.polygon.pts.data;
for (int i = 2; i < node->node.polygon.pointsCount - 1; i += 2) { shape->moveTo(pts[0], pts[1]);
shape->lineTo(node->node.polygon.points[i], node->node.polygon.points[i + 1]); for (pts += 2; pts < node->node.polygon.pts.end(); pts += 2) {
shape->lineTo(pts[0], pts[1]);
} }
shape->close(); shape->close();
break; break;
} }
case SvgNodeType::Polyline: { case SvgNodeType::Polyline: {
if (node->node.polygon.pointsCount < 2) break; if (node->node.polyline.pts.count < 2) break;
shape->moveTo(node->node.polygon.points[0], node->node.polygon.points[1]); auto pts = node->node.polyline.pts.data;
for (int i = 2; i < node->node.polygon.pointsCount - 1; i += 2) { shape->moveTo(pts[0], pts[1]);
shape->lineTo(node->node.polygon.points[i], node->node.polygon.points[i + 1]); for (pts += 2; pts < node->node.polyline.pts.end(); pts += 2) {
shape->lineTo(pts[0], pts[1]);
} }
break; break;
} }