OLD | NEW |
---|---|
(Empty) | |
1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 #include "cc/output/bsp_compare_result.h" | |
5 #include "cc/output/bsp_controller.h" | |
6 #include "cc/quads/draw_polygon.h" | |
7 #include "ui/gfx/vector3d_f.h" | |
8 | |
9 namespace cc { | |
10 | |
11 BspCompareResult BspController::GetNodePositionRelative( | |
12 const DrawPolygon& node_a, | |
13 const DrawPolygon& node_b) const { | |
14 return DrawPolygon::SideCompare(node_a, node_b, compare_threshold_); | |
15 } | |
16 | |
17 // The base comparer with 0,0,0 as camera position facing forward | |
18 ViewCompareResult BspController::GetCameraPositionRelative( | |
19 const DrawPolygon& node) const { | |
20 // The dot product figures out if we're behind or in front of the | |
21 // current DrawPolygon based on its normal and a point from it. | |
22 if (node.normal.z() >= 0.f) | |
Ian Vollick
2014/07/16 20:54:32
This is probably a dumb question, but why don't yo
troyhildebrandt
2014/07/18 21:48:25
You're right, done.
| |
23 return IN_FRONT; | |
24 return BEHIND; | |
25 } | |
26 | |
27 bool BspController::SplitPolygon(scoped_ptr<DrawPolygon> polygon, | |
28 const DrawPolygon& splitter, | |
29 scoped_ptr<DrawPolygon>* front, | |
30 scoped_ptr<DrawPolygon>* back) const { | |
31 return polygon->Split(splitter, split_threshold_, front, back); | |
32 } | |
33 | |
34 float BspController::SplitWeight(const DrawPolygon& polygon) { | |
35 return polygon.area; | |
36 } | |
37 | |
38 } // namespace cc | |
OLD | NEW |