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wg_engine: fix close command logic

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On a close path command creates a new object started form the closed point
issue: https://github.com/thorvg/thorvg/pull/2923
This commit is contained in:
Sergii Liebodkin 2024-10-31 13:39:20 +00:00 • committed by Hermet Park
parent 6d03def994
commit 505ebe9fe6
1 changed files with 16 additions and 4 deletions
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20
src/renderer/wg_engine/tvgWgGeometry.h
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@ -198,8 +198,7 @@ struct WgVertexBuffer
if (cmd == PathCommand::MoveTo) { if (cmd == PathCommand::MoveTo) {
// after path decoding we need to update distances and total length // after path decoding we need to update distances and total length
if (update_dist) updateDistances(); if (update_dist) updateDistances();
if ((onPolyline) && (vcount != 0)) if ((onPolyline) && (vcount > 0)) onPolyline(*this);
onPolyline(*this);
reset(tscale); reset(tscale);
append(rshape.path.pts[pntIndex]); append(rshape.path.pts[pntIndex]);
pntIndex++; pntIndex++;
@ -208,15 +207,28 @@ struct WgVertexBuffer
pntIndex++; pntIndex++;
} else if (cmd == PathCommand::Close) { } else if (cmd == PathCommand::Close) {
close(); close();
// proceed path if close command is not the last command and next command is LineTo or CubicTo
if ((cmdIndex + 1 < rshape.path.cmds.count) &&
((rshape.path.cmds[cmdIndex + 1] == PathCommand::LineTo) ||
(rshape.path.cmds[cmdIndex + 1] == PathCommand::CubicTo))) {
// proceed current path
if (update_dist) updateDistances();
if ((vcount > 0) && (onPolyline)) onPolyline(*this);
// append closing point of current path as a first point of the new path
Point last_pt = last();
reset(tscale);
append(last_pt);
}
} else if (cmd == PathCommand::CubicTo) { } else if (cmd == PathCommand::CubicTo) {
// append tesselated cubic spline with tscale param
appendCubic(vbuff[vcount - 1], rshape.path.pts[pntIndex + 0], rshape.path.pts[pntIndex + 1], rshape.path.pts[pntIndex + 2]); appendCubic(vbuff[vcount - 1], rshape.path.pts[pntIndex + 0], rshape.path.pts[pntIndex + 1], rshape.path.pts[pntIndex + 2]);
pntIndex += 3; pntIndex += 3;
} }
} }
// after path decoding we need to update distances and total length // after path decoding we need to update distances and total length
if (update_dist) updateDistances(); if (update_dist) updateDistances();
if ((onPolyline) && (vcount != 0)) if ((vcount > 0) && (onPolyline)) onPolyline(*this);
onPolyline(*this); reset(tscale);
} }
}; };