half_edge tetraedron(gl_vertex *v1, gl_vertex *v2, gl_vertex *v3, gl_vertex *v4) {
half_edge e12 = create_triangle(v1, v2, v3);
half_edge e21 = e12 -> opp;
half_edge e13 = e12 -> next;
half_edge e31 = e13 -> opp;
half_edge e32 = e31 -> next;
add_vertex_to_edge(e21,v4);
half_edge e24 = e21 -> next;
half_edge e42 = e24 -> opp;
half_edge e41 = e42 -> next;
close_triangle(e32,e24);
half_edge e34 = e32 -> next;
fill_triangle(e13,e34,e41);
return e12;
}
DEF_TEST(Vertices_clipping, reporter) {
// A very large triangle has to be geometrically clipped (since its "fast" clipping is
// normally done in after building SkFixed coordinates). Check that we handle this.
// (and don't assert).
auto surf = SkSurface::MakeRasterN32Premul(3, 3);
SkPoint pts[] = { { -10, 1 }, { -10, 2 }, { 1e9f, 1.5f } };
fill_triangle(surf->getCanvas(), pts, SK_ColorBLACK);
sk_tool_utils::PixelIter iter(surf.get());
SkIPoint loc;
while (void* addr = iter.next(&loc)) {
SkPMColor c = *(SkPMColor*)addr;
if (loc.fY == 1) {
REPORTER_ASSERT(reporter, c == 0xFF000000);
} else {
REPORTER_ASSERT(reporter, c == 0);
}
}
}
int wmain(int argc, wchar_t* argv[])
{
Point2d points[3] = {
{ 100, 0 },
{ 0, 200 },
{ 200, 300 }
};
Points2dv pdv1({ {100, 0}, { 0, 200 }, { 200, 300 } });
Points2dv pdv2({ {100, 0}, { 200, 300 }, { 0, 200 } });
Points2dv pdv3({ {0, 200}, { 100, 0 }, { 200, 300 } });
Points2dv pdv4({ {0, 200}, { 200, 300 }, { 100, 0 } });
Points2dv pdv5({ {200, 300}, { 100, 0 }, { 0, 200 } });
Points2dv pdv6({ {200, 300}, { 0, 200 }, { 100, 0 } });
fill_triangle(pdv1);
fill_triangle(pdv2);
fill_triangle(pdv3);
fill_triangle(pdv4);
fill_triangle(pdv5);
fill_triangle(pdv6);
return 0;
}
void Canvas::fill_triangle(const Trianglef &dest_triangle, const Colorf &color)
{
fill_triangle(dest_triangle.p, dest_triangle.q, dest_triangle.r, color);
}
/* Remplit un triangle dont les sommets sont les points (x1, y1),
(x2, y2) et (x3, y3) */
void TrianglePlein(int x1, int y1, int x2, int y2, int x3, int y3) {
fill_triangle(fenetreCourante, x1, y1, x2, y2, x3, y3);
}
