Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(6)

Side by Side Diff: cc/quads/draw_polygon.h

Issue 384083002: WIP BSP Tree for 3D Layer Sorting (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Small fixes to style/formatting, minor cleanup. Created 6 years, 5 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
OLDNEW
(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
5 #ifndef CC_QUADS_DRAW_POLYGON_H_
6 #define CC_QUADS_DRAW_POLYGON_H_
7
8 #include <vector>
9
10 #include "cc/base/math_util.h"
11 #include "cc/output/bsp_compare_result.h"
12 #include "cc/quads/draw_quad.h"
13 #include "ui/gfx/point3_f.h"
14 #include "ui/gfx/quad_f.h"
15 #include "ui/gfx/vector3d_f.h"
16
17 namespace cc {
18
19 class DrawPolygon {
20 public:
21 DrawPolygon();
22 ~DrawPolygon();
23
24 DrawPolygon(DrawQuad* original_ref,
25 gfx::Point3F* in_points,
26 int num_vertices_in_polygon,
27 int draw_order_index = 0,
28 bool polygon_is_original = true);
29 DrawPolygon(const DrawPolygon& other);
30
31 DrawPolygon& operator=(const DrawPolygon& rhs);
32
33 bool Split(const DrawPolygon& splitter,
34 double plane_threshold,
35 scoped_ptr<DrawPolygon>* front,
36 scoped_ptr<DrawPolygon>* back);
37 float SignedPointDistance(const gfx::Point3F& point) const;
38 bool ApplyTransform(const gfx::Transform& transform);
39
40 std::vector<gfx::Point3F> points;
41 gfx::Vector3dF normal;
42 float area;
43 int order_index;
44 bool is_original; // Has this been split yet or is it still intact?
Ian Vollick 2014/07/16 20:54:33 Apologies if I just missed it, but where's this us
troyhildebrandt 2014/07/18 21:48:27 This is more for the rendering side of things, not
45
46 // Checks polygon a against polygon b and returns which side it lies on, or
47 // whether it crosses (necessitating a split in the BSP tree).
48 static BspCompareResult SideCompare(const DrawPolygon& a,
49 const DrawPolygon& b,
50 float z_threshold);
51 float Area() const;
52 float SignedArea() const;
53 void ToQuads2D(std::vector<gfx::QuadF>* quads) const;
54 int NumPoints() { return points.size(); }
55 bool GetInverseTransform(gfx::Transform* transform) const;
56
57 // The pointer to the original quad, which gives us all the drawing info
58 // we need.
59 DrawQuad* original_ref;
60
61 private:
62 void CopyFrom(const DrawPolygon& rhs);
63 };
64
65 } // namespace cc
66
67 #endif // CC_QUADS_DRAW_POLYGON_H_
OLDNEW

Powered by Google App Engine
This is Rietveld 408576698