Romain Guy | f7f9355 | 2010-07-08 19:17:03 -0700 | [diff] [blame] | 1 | /* |
| 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 Guy | 5b3b352 | 2010-10-27 18:57:51 -0700 | [diff] [blame] | 17 | #ifndef ANDROID_HWUI_VERTEX_H |
| 18 | #define ANDROID_HWUI_VERTEX_H |
Romain Guy | f7f9355 | 2010-07-08 19:17:03 -0700 | [diff] [blame] | 19 | |
Chris Craik | 6d29c8d | 2013-05-08 18:35:44 -0700 | [diff] [blame] | 20 | #include "Vector.h" |
| 21 | |
Chris Craik | 0519c81 | 2015-02-11 13:17:06 -0800 | [diff] [blame] | 22 | #include "utils/Macros.h" |
Rob Tsuk | a9fc9b2 | 2015-01-22 12:46:31 -0800 | [diff] [blame] | 23 | |
Romain Guy | f7f9355 | 2010-07-08 19:17:03 -0700 | [diff] [blame] | 24 | namespace android { |
| 25 | namespace uirenderer { |
| 26 | |
| 27 | /** |
Romain Guy | f7f9355 | 2010-07-08 19:17:03 -0700 | [diff] [blame] | 28 | * Simple structure to describe a vertex with a position and a texture. |
| 29 | */ |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 30 | struct Vertex { |
Chris Craik | 32f05e3 | 2013-09-17 16:20:29 -0700 | [diff] [blame] | 31 | /** |
| 32 | * Fudge-factor used to disambiguate geometry pixel positioning. |
| 33 | * |
| 34 | * Used to offset lines and points to avoid ambiguous intersection with pixel centers (see |
| 35 | * Program::set()), and used to make geometry damage rect calculation conservative (see |
| 36 | * Rect::snapGeometryToPixelBoundaries()) |
| 37 | */ |
Chris Craik | 564acf7 | 2014-01-02 16:46:18 -0800 | [diff] [blame] | 38 | static float GeometryFudgeFactor() { return 0.0656f; } |
| 39 | |
Romain Guy | 3380cfd | 2013-08-15 16:57:57 -0700 | [diff] [blame] | 40 | float x, y; |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 41 | |
| 42 | static inline void set(Vertex* vertex, float x, float y) { |
Chris Craik | 51d6a3d | 2014-12-22 17:16:56 -0800 | [diff] [blame] | 43 | vertex->x = x; |
| 44 | vertex->y = y; |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 45 | } |
Chris Craik | 6d29c8d | 2013-05-08 18:35:44 -0700 | [diff] [blame] | 46 | |
John Reck | 1bcacfd | 2017-11-03 10:12:19 -0700 | [diff] [blame] | 47 | static inline void set(Vertex* vertex, Vector2 val) { set(vertex, val.x, val.y); } |
Chris Craik | 6d29c8d | 2013-05-08 18:35:44 -0700 | [diff] [blame] | 48 | |
| 49 | static inline void copyWithOffset(Vertex* vertex, const Vertex& src, float x, float y) { |
Romain Guy | 3380cfd | 2013-08-15 16:57:57 -0700 | [diff] [blame] | 50 | set(vertex, src.x + x, src.y + y); |
Chris Craik | 6d29c8d | 2013-05-08 18:35:44 -0700 | [diff] [blame] | 51 | } |
| 52 | |
John Reck | 1bcacfd | 2017-11-03 10:12:19 -0700 | [diff] [blame] | 53 | }; // struct Vertex |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 54 | |
Rob Tsuk | a9fc9b2 | 2015-01-22 12:46:31 -0800 | [diff] [blame] | 55 | REQUIRE_COMPATIBLE_LAYOUT(Vertex); |
| 56 | |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 57 | /** |
Romain Guy | ff316ec | 2013-02-13 18:39:43 -0800 | [diff] [blame] | 58 | * Simple structure to describe a vertex with a position and texture UV. |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 59 | */ |
Romain Guy | f7f9355 | 2010-07-08 19:17:03 -0700 | [diff] [blame] | 60 | struct TextureVertex { |
Romain Guy | 3380cfd | 2013-08-15 16:57:57 -0700 | [diff] [blame] | 61 | float x, y; |
| 62 | float u, v; |
Romain Guy | f7f9355 | 2010-07-08 19:17:03 -0700 | [diff] [blame] | 63 | |
| 64 | static inline void set(TextureVertex* vertex, float x, float y, float u, float v) { |
John Reck | 1bcacfd | 2017-11-03 10:12:19 -0700 | [diff] [blame] | 65 | *vertex = {x, y, u, v}; |
Romain Guy | f7f9355 | 2010-07-08 19:17:03 -0700 | [diff] [blame] | 66 | } |
Romain Guy | 82ba814 | 2010-07-09 13:25:56 -0700 | [diff] [blame] | 67 | |
| 68 | static inline void setUV(TextureVertex* vertex, float u, float v) { |
Romain Guy | 3380cfd | 2013-08-15 16:57:57 -0700 | [diff] [blame] | 69 | vertex[0].u = u; |
| 70 | vertex[0].v = v; |
Romain Guy | 82ba814 | 2010-07-09 13:25:56 -0700 | [diff] [blame] | 71 | } |
John Reck | 1bcacfd | 2017-11-03 10:12:19 -0700 | [diff] [blame] | 72 | }; // struct TextureVertex |
Romain Guy | f7f9355 | 2010-07-08 19:17:03 -0700 | [diff] [blame] | 73 | |
Rob Tsuk | a9fc9b2 | 2015-01-22 12:46:31 -0800 | [diff] [blame] | 74 | REQUIRE_COMPATIBLE_LAYOUT(TextureVertex); |
| 75 | |
Chris Blume | 7b8a808 | 2018-11-30 15:51:58 -0800 | [diff] [blame] | 76 | } // namespace uirenderer |
| 77 | } // namespace android |
Romain Guy | f7f9355 | 2010-07-08 19:17:03 -0700 | [diff] [blame] | 78 | |
John Reck | 1bcacfd | 2017-11-03 10:12:19 -0700 | [diff] [blame] | 79 | #endif // ANDROID_HWUI_VERTEX_H |