godotengine
/
godot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix crash in `canvas_item_add_polyline` when passing more points than colors 

When `p_points.size() > p_colors.size()`, it crashed with invalid
array access to `p_colors`. Also, when `p_colors` was an empty
`Vector` it crashed due a missing `else` checking the `size`
condition, as the code handling that special case exists.

This PR fixes the missing `else` for `p_colors.size == 0` and,
following the `canvas_item_add_multiline` spirit, it only uses the
first color for the whole polyline if points and colors differ in
size.

Fix #17621.
This commit is contained in:
robfram 2018-03-19 19:22:38 +01:00
parent ebce36c22f
commit 8eedb2afe2
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
servers/visual/visual_server_canvas.cpp
View File

@ -440,14 +440,18 @@ void VisualServerCanvas::canvas_item_add_polyline(RID p_item, const Vector<Point
if (p_antialiased) { if (p_antialiased) {
pline->line_colors.push_back(Color(1, 1, 1, 1)); pline->line_colors.push_back(Color(1, 1, 1, 1));
} }
} } else if (p_colors.size() == 1) {
if (p_colors.size() == 1) {
pline->triangle_colors = p_colors; pline->triangle_colors = p_colors;
pline->line_colors = p_colors; pline->line_colors = p_colors;
} else {
if (p_colors.size() != p_points.size()) {
pline->triangle_colors.push_back(p_colors[0]);
pline->line_colors.push_back(p_colors[0]);
} else { } else {
pline->triangle_colors.resize(pline->triangles.size()); pline->triangle_colors.resize(pline->triangles.size());
pline->line_colors.resize(pline->lines.size()); pline->line_colors.resize(pline->lines.size());
} }
}
for (int i = 0; i < p_points.size(); i++) { for (int i = 0; i < p_points.size(); i++) {