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 17 #ifndef ANDROID_HWUI_VERTEX_H 18 #define ANDROID_HWUI_VERTEX_H 19 20 namespace android { 21 namespace uirenderer { 22 23 /** 24 * Simple structure to describe a vertex with a position and a texture. 25 */ 26 struct Vertex { 27 float position[2]; 28 setVertex29 static inline void set(Vertex* vertex, float x, float y) { 30 vertex[0].position[0] = x; 31 vertex[0].position[1] = y; 32 } 33 }; // struct Vertex 34 35 /** 36 * Simple structure to describe a vertex with a position and a texture. 37 */ 38 struct TextureVertex { 39 float position[2]; 40 float texture[2]; 41 setTextureVertex42 static inline void set(TextureVertex* vertex, float x, float y, float u, float v) { 43 vertex[0].position[0] = x; 44 vertex[0].position[1] = y; 45 vertex[0].texture[0] = u; 46 vertex[0].texture[1] = v; 47 } 48 setUVTextureVertex49 static inline void setUV(TextureVertex* vertex, float u, float v) { 50 vertex[0].texture[0] = u; 51 vertex[0].texture[1] = v; 52 } 53 }; // struct TextureVertex 54 55 /** 56 * Simple structure to describe a vertex with a position and an alpha value. 57 */ 58 struct AlphaVertex : Vertex { 59 float alpha; 60 setAlphaVertex61 static inline void set(AlphaVertex* vertex, float x, float y, float alpha) { 62 Vertex::set(vertex, x, y); 63 vertex[0].alpha = alpha; 64 } 65 setColorAlphaVertex66 static inline void setColor(AlphaVertex* vertex, float alpha) { 67 vertex[0].alpha = alpha; 68 } 69 }; // struct AlphaVertex 70 71 /** 72 * Simple structure to describe a vertex with a position and an alpha value. 73 */ 74 struct AAVertex : Vertex { 75 float width; 76 float length; 77 setAAVertex78 static inline void set(AAVertex* vertex, float x, float y, float width, float length) { 79 Vertex::set(vertex, x, y); 80 vertex[0].width = width; 81 vertex[0].length = length; 82 } 83 setColorAAVertex84 static inline void setColor(AAVertex* vertex, float width, float length) { 85 vertex[0].width = width; 86 vertex[0].length = length; 87 } 88 }; // struct AlphaVertex 89 90 }; // namespace uirenderer 91 }; // namespace android 92 93 #endif // ANDROID_HWUI_VERTEX_H 94