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Issue 384083002: WIP BSP Tree for 3D Layer Sorting (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Removed some forgotten debug output Created 6 years, 5 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved.
enne (OOO) 2014/07/28 21:38:19 ಠ_ಠ 2014, here and elsewhere
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 BspController::BspController() {
12 }
13
14 BspCompareResult BspController::GetNodePositionRelative(
15 const DrawPolygon& node_a,
16 const DrawPolygon& node_b) {
17 return DrawPolygon::SideCompare(node_a, node_b);
18 }
19
20 // The base comparer with 0,0,0 as camera position facing forward
21 BspCompareResult BspController::GetCameraPositionRelative(
22 const DrawPolygon& node) {
23 if (node.normal().z() > 0.0f) {
24 return BSP_FRONT;
25 }
26 return BSP_BACK;
27 }
28
29 bool BspController::SplitPolygon(scoped_ptr<DrawPolygon> polygon,
30 const DrawPolygon& splitter,
31 scoped_ptr<DrawPolygon>* front,
32 scoped_ptr<DrawPolygon>* back) {
33 return polygon->Split(splitter, front, back);
34 }
35
36 } // namespace cc
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