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Restore antialiasing for draw_line

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This commit is contained in:
Yuri Roubinsky 2022-04-11 20:42:46 +03:00
parent 5974e1432e
commit 6e9535a9c8
10 changed files with 182 additions and 19 deletions
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175
servers/rendering/renderer_canvas_cull.cpp
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@ -552,27 +552,188 @@ void RendererCanvasCull::canvas_item_set_update_when_visible(RID p_item, bool p_
canvas_item->update_when_visible = p_update;
}
void RendererCanvasCull::canvas_item_add_line(RID p_item, const Point2 &p_from, const Point2 &p_to, const Color &p_color, float p_width) {
void RendererCanvasCull::canvas_item_add_line(RID p_item, const Point2 &p_from, const Point2 &p_to, const Color &p_color, float p_width, bool p_antialiased) {
Item *canvas_item = canvas_item_owner.get_or_null(p_item);
ERR_FAIL_COND(!canvas_item);
Item::CommandPrimitive *line = canvas_item->alloc_command<Item::CommandPrimitive>();
ERR_FAIL_COND(!line);
Vector2 diff = (p_from - p_to);
Vector2 dir = diff.orthogonal().normalized();
Vector2 t = dir * p_width * 0.5;
Vector2 begin_left;
Vector2 begin_right;
Vector2 end_left;
Vector2 end_right;
if (p_width > 1.001) {
Vector2 t = (p_from - p_to).orthogonal().normalized() * p_width * 0.5;
line->points[0] = p_from + t;
line->points[1] = p_from - t;
line->points[2] = p_to - t;
line->points[3] = p_to + t;
begin_left = p_from + t;
begin_right = p_from - t;
end_left = p_to + t;
end_right = p_to - t;
line->points[0] = begin_left;
line->points[1] = begin_right;
line->points[2] = end_right;
line->points[3] = end_left;
line->point_count = 4;
} else {
line->point_count = 2;
begin_left = p_from;
begin_right = p_from;
end_left = p_to;
end_right = p_to;
line->points[0] = p_from;
line->points[1] = p_to;
line->point_count = 2;
}
for (uint32_t i = 0; i < line->point_count; i++) {
line->colors[i] = p_color;
}
if (p_antialiased) {
float border_size = 2.0;
if (p_width < border_size) {
border_size = p_width;
}
Vector2 dir2 = diff.normalized();
Vector2 border = dir * border_size;
Vector2 border2 = dir2 * border_size;
Color transparent = Color(p_color.r, p_color.g, p_color.b, 0.0);
{
Item::CommandPrimitive *left_border = canvas_item->alloc_command<Item::CommandPrimitive>();
ERR_FAIL_COND(!left_border);
left_border->points[0] = begin_left;
left_border->points[1] = begin_left + border;
left_border->points[2] = end_left + border;
left_border->points[3] = end_left;
left_border->colors[0] = p_color;
left_border->colors[1] = transparent;
left_border->colors[2] = transparent;
left_border->colors[3] = p_color;
left_border->point_count = 4;
}
{
Item::CommandPrimitive *right_border = canvas_item->alloc_command<Item::CommandPrimitive>();
ERR_FAIL_COND(!right_border);
right_border->points[0] = begin_right;
right_border->points[1] = begin_right - border;
right_border->points[2] = end_right - border;
right_border->points[3] = end_right;
right_border->colors[0] = p_color;
right_border->colors[1] = transparent;
right_border->colors[2] = transparent;
right_border->colors[3] = p_color;
right_border->point_count = 4;
}
{
Item::CommandPrimitive *top_border = canvas_item->alloc_command<Item::CommandPrimitive>();
ERR_FAIL_COND(!top_border);
top_border->points[0] = begin_left;
top_border->points[1] = begin_left + border2;
top_border->points[2] = begin_right + border2;
top_border->points[3] = begin_right;
top_border->colors[0] = p_color;
top_border->colors[1] = transparent;
top_border->colors[2] = transparent;
top_border->colors[3] = p_color;
top_border->point_count = 4;
}
{
Item::CommandPrimitive *bottom_border = canvas_item->alloc_command<Item::CommandPrimitive>();
ERR_FAIL_COND(!bottom_border);
bottom_border->points[0] = end_left;
bottom_border->points[1] = end_left - border2;
bottom_border->points[2] = end_right - border2;
bottom_border->points[3] = end_right;
bottom_border->colors[0] = p_color;
bottom_border->colors[1] = transparent;
bottom_border->colors[2] = transparent;
bottom_border->colors[3] = p_color;
bottom_border->point_count = 4;
}
{
Item::CommandPrimitive *top_left_corner = canvas_item->alloc_command<Item::CommandPrimitive>();
ERR_FAIL_COND(!top_left_corner);
top_left_corner->points[0] = begin_left;
top_left_corner->points[1] = begin_left + border2;
top_left_corner->points[2] = begin_left + border + border2;
top_left_corner->points[3] = begin_left + border;
top_left_corner->colors[0] = p_color;
top_left_corner->colors[1] = transparent;
top_left_corner->colors[2] = transparent;
top_left_corner->colors[3] = transparent;
top_left_corner->point_count = 4;
}
{
Item::CommandPrimitive *top_right_corner = canvas_item->alloc_command<Item::CommandPrimitive>();
ERR_FAIL_COND(!top_right_corner);
top_right_corner->points[0] = begin_right;
top_right_corner->points[1] = begin_right + border2;
top_right_corner->points[2] = begin_right - border + border2;
top_right_corner->points[3] = begin_right - border;
top_right_corner->colors[0] = p_color;
top_right_corner->colors[1] = transparent;
top_right_corner->colors[2] = transparent;
top_right_corner->colors[3] = transparent;
top_right_corner->point_count = 4;
}
{
Item::CommandPrimitive *bottom_left_corner = canvas_item->alloc_command<Item::CommandPrimitive>();
ERR_FAIL_COND(!bottom_left_corner);
bottom_left_corner->points[0] = end_left;
bottom_left_corner->points[1] = end_left - border2;
bottom_left_corner->points[2] = end_left + border - border2;
bottom_left_corner->points[3] = end_left + border;
bottom_left_corner->colors[0] = p_color;
bottom_left_corner->colors[1] = transparent;
bottom_left_corner->colors[2] = transparent;
bottom_left_corner->colors[3] = transparent;
bottom_left_corner->point_count = 4;
}
{
Item::CommandPrimitive *bottom_right_corner = canvas_item->alloc_command<Item::CommandPrimitive>();
ERR_FAIL_COND(!bottom_right_corner);
bottom_right_corner->points[0] = end_right;
bottom_right_corner->points[1] = end_right - border2;
bottom_right_corner->points[2] = end_right - border - border2;
bottom_right_corner->points[3] = end_right - border;
bottom_right_corner->colors[0] = p_color;
bottom_right_corner->colors[1] = transparent;
bottom_right_corner->colors[2] = transparent;
bottom_right_corner->colors[3] = transparent;
bottom_right_corner->point_count = 4;
}
}
}
void RendererCanvasCull::canvas_item_add_polyline(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, float p_width, bool p_antialiased) {