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Romain Guyf7f93552010-07-08 19:17:03 -07001/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
Romain Guy5b3b3522010-10-27 18:57:51 -070017#ifndef ANDROID_HWUI_VERTEX_H
18#define ANDROID_HWUI_VERTEX_H
Romain Guyf7f93552010-07-08 19:17:03 -070019
Chris Craik6d29c8d2013-05-08 18:35:44 -070020#include "Vector.h"
21
Romain Guy253f2c22016-09-28 17:34:42 -070022#include "FloatColor.h"
Chris Craik0519c812015-02-11 13:17:06 -080023#include "utils/Macros.h"
Rob Tsuka9fc9b22015-01-22 12:46:31 -080024
Romain Guyf7f93552010-07-08 19:17:03 -070025namespace android {
26namespace uirenderer {
27
28/**
Romain Guyf7f93552010-07-08 19:17:03 -070029 * Simple structure to describe a vertex with a position and a texture.
30 */
Chet Haase5b0200b2011-04-13 17:58:08 -070031struct Vertex {
Chris Craik32f05e32013-09-17 16:20:29 -070032 /**
33 * Fudge-factor used to disambiguate geometry pixel positioning.
34 *
35 * Used to offset lines and points to avoid ambiguous intersection with pixel centers (see
36 * Program::set()), and used to make geometry damage rect calculation conservative (see
37 * Rect::snapGeometryToPixelBoundaries())
38 */
Chris Craik564acf72014-01-02 16:46:18 -080039 static float GeometryFudgeFactor() { return 0.0656f; }
40
Romain Guy3380cfd2013-08-15 16:57:57 -070041 float x, y;
Chet Haase5b0200b2011-04-13 17:58:08 -070042
43 static inline void set(Vertex* vertex, float x, float y) {
Chris Craik51d6a3d2014-12-22 17:16:56 -080044 vertex->x = x;
45 vertex->y = y;
Chet Haase5b0200b2011-04-13 17:58:08 -070046 }
Chris Craik6d29c8d2013-05-08 18:35:44 -070047
John Reck1bcacfd2017-11-03 10:12:19 -070048 static inline void set(Vertex* vertex, Vector2 val) { set(vertex, val.x, val.y); }
Chris Craik6d29c8d2013-05-08 18:35:44 -070049
50 static inline void copyWithOffset(Vertex* vertex, const Vertex& src, float x, float y) {
Romain Guy3380cfd2013-08-15 16:57:57 -070051 set(vertex, src.x + x, src.y + y);
Chris Craik6d29c8d2013-05-08 18:35:44 -070052 }
53
John Reck1bcacfd2017-11-03 10:12:19 -070054}; // struct Vertex
Chet Haase5b0200b2011-04-13 17:58:08 -070055
Rob Tsuka9fc9b22015-01-22 12:46:31 -080056REQUIRE_COMPATIBLE_LAYOUT(Vertex);
57
Chet Haase5b0200b2011-04-13 17:58:08 -070058/**
Romain Guyff316ec2013-02-13 18:39:43 -080059 * Simple structure to describe a vertex with a position and texture UV.
Chet Haase5b0200b2011-04-13 17:58:08 -070060 */
Romain Guyf7f93552010-07-08 19:17:03 -070061struct TextureVertex {
Romain Guy3380cfd2013-08-15 16:57:57 -070062 float x, y;
63 float u, v;
Romain Guyf7f93552010-07-08 19:17:03 -070064
65 static inline void set(TextureVertex* vertex, float x, float y, float u, float v) {
John Reck1bcacfd2017-11-03 10:12:19 -070066 *vertex = {x, y, u, v};
Romain Guyf7f93552010-07-08 19:17:03 -070067 }
Romain Guy82ba8142010-07-09 13:25:56 -070068
69 static inline void setUV(TextureVertex* vertex, float u, float v) {
Romain Guy3380cfd2013-08-15 16:57:57 -070070 vertex[0].u = u;
71 vertex[0].v = v;
Romain Guy82ba8142010-07-09 13:25:56 -070072 }
John Reck1bcacfd2017-11-03 10:12:19 -070073}; // struct TextureVertex
Romain Guyf7f93552010-07-08 19:17:03 -070074
Rob Tsuka9fc9b22015-01-22 12:46:31 -080075REQUIRE_COMPATIBLE_LAYOUT(TextureVertex);
76
John Reck1bcacfd2017-11-03 10:12:19 -070077}; // namespace uirenderer
78}; // namespace android
Romain Guyf7f93552010-07-08 19:17:03 -070079
John Reck1bcacfd2017-11-03 10:12:19 -070080#endif // ANDROID_HWUI_VERTEX_H