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no crash in draw_s2xe if empty shape to draw, also moved npoly to draw_s2xe

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This commit is contained in:
Zeno Rogue 2019-08-20 14:48:35 +02:00
parent 161db58988
commit afa6d722dd
1 changed files with 12 additions and 10 deletions
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22
drawing.cpp
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@ -912,7 +912,15 @@ struct point_data {
int bad;
};
void draw_s2xe(dqi_poly *p, dqi_poly *npoly) {
void draw_s2xe(dqi_poly *p) {
if(!p->cnt) return;
dqi_poly npoly = *p;
npoly.offset = 0;
npoly.tab = &glcoords;
npoly.V = Id;
set_width(1);
glcoords.clear();
int maxgen = sightranges[geometry] / (2 * M_PI) + 1;
auto crossdot = [&] (const hyperpoint h1, const hyperpoint h2) { return make_pair(h1[0] * h2[1] - h1[1] * h2[0], h1[0] * h2[0] + h1[1] * h2[1]); };
@ -972,7 +980,7 @@ void draw_s2xe(dqi_poly *p, dqi_poly *npoly) {
glcoords[i] = glhr::pointtogl(h);
}
}
npoly->gldraw();
npoly.gldraw();
}
}
else {
@ -1015,7 +1023,7 @@ void draw_s2xe(dqi_poly *p, dqi_poly *npoly) {
h[2] = cur.z;
glcoords[i] = glhr::pointtogl(h);
}
npoly->gldraw();
npoly.gldraw();
}
}
}
@ -1024,13 +1032,7 @@ void dqi_poly::draw() {
if(flags & POLY_DEBUG) debug_this();
if(prod && vid.usingGL && pmodel == mdPerspective && (current_display->set_all(global_projection), shaderside_projection) && product::product_sphere()) {
auto npoly = *this;
npoly.offset = 0;
npoly.tab = &glcoords;
npoly.V = Id;
set_width(1);
glcoords.clear();
draw_s2xe(this, &npoly);
draw_s2xe(this);
return;
}