1edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project/* 2edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 3edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 4edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * you may not use this file except in compliance with the License. 6edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * You may obtain a copy of the License at 7edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 8edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 10edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * See the License for the specific language governing permissions and 14edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * limitations under the License. 15edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project */ 16edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 17edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#ifndef ANDROID_TRANSFORM_H 18edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define ANDROID_TRANSFORM_H 19edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 20edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <stdint.h> 21edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <sys/types.h> 22edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 23edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <ui/Point.h> 24edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <ui/Rect.h> 25ff2ed70fa30f04b90dd1a2c06ec2319e157152d7Mathias Agopian#include <ui/vec2.h> 26ff2ed70fa30f04b90dd1a2c06ec2319e157152d7Mathias Agopian#include <ui/vec3.h> 27edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 280694d0f3b3d016b9eedda13c447e8e7735a4a177Mathias Agopian#include <hardware/hardware.h> 290694d0f3b3d016b9eedda13c447e8e7735a4a177Mathias Agopian 30edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectnamespace android { 31edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 32edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectclass Region; 33edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 34edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// --------------------------------------------------------------------------- 35edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 36edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectclass Transform 37edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 38edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectpublic: 39edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Transform(); 40edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Transform(const Transform& other); 41eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian explicit Transform(uint32_t orientation); 42edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project ~Transform(); 43edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 44edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project enum orientation_flags { 45edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project ROT_0 = 0x00000000, 460694d0f3b3d016b9eedda13c447e8e7735a4a177Mathias Agopian FLIP_H = HAL_TRANSFORM_FLIP_H, 470694d0f3b3d016b9eedda13c447e8e7735a4a177Mathias Agopian FLIP_V = HAL_TRANSFORM_FLIP_V, 480694d0f3b3d016b9eedda13c447e8e7735a4a177Mathias Agopian ROT_90 = HAL_TRANSFORM_ROT_90, 49edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project ROT_180 = FLIP_H|FLIP_V, 50edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project ROT_270 = ROT_180|ROT_90, 51eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian ROT_INVALID = 0x80 52edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project }; 53edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 54a2fe0a234bd6823f868742a3c137acb8875e1b03Mathias Agopian enum type_mask { 55a2fe0a234bd6823f868742a3c137acb8875e1b03Mathias Agopian IDENTITY = 0, 56a2fe0a234bd6823f868742a3c137acb8875e1b03Mathias Agopian TRANSLATE = 0x1, 57eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian ROTATE = 0x2, 58eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian SCALE = 0x4, 59eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian UNKNOWN = 0x8 60a2fe0a234bd6823f868742a3c137acb8875e1b03Mathias Agopian }; 61a2fe0a234bd6823f868742a3c137acb8875e1b03Mathias Agopian 62eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian // query the transform 63eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian bool transformed() const; 64eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian bool preserveRects() const; 65eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian uint32_t getType() const; 66eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian uint32_t getOrientation() const; 67eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian 68ff2ed70fa30f04b90dd1a2c06ec2319e157152d7Mathias Agopian const vec3& operator [] (size_t i) const; // returns column i 6941b6aabf356d8a505da37b1d046bc9010028fe8bMathias Agopian float tx() const; 7041b6aabf356d8a505da37b1d046bc9010028fe8bMathias Agopian float ty() const; 71eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian 72eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian // modify the transform 73d12965934712ed0b9c1a264a6934dc0dad839ffdMathias Agopian void reset(); 74d12965934712ed0b9c1a264a6934dc0dad839ffdMathias Agopian void set(float tx, float ty); 75d12965934712ed0b9c1a264a6934dc0dad839ffdMathias Agopian void set(float a, float b, float c, float d); 76d12965934712ed0b9c1a264a6934dc0dad839ffdMathias Agopian status_t set(uint32_t flags, float w, float h); 77eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian 78eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian // transform data 79edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Rect makeBounds(int w, int h) const; 80ff2ed70fa30f04b90dd1a2c06ec2319e157152d7Mathias Agopian vec2 transform(int x, int y) const; 81edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Region transform(const Region& reg) const; 82161534a3c5ee77bc91e7a73ffb6274f35324f8b5Jamie Gennis Rect transform(const Rect& bounds) const; 83edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Transform operator * (const Transform& rhs) const; 84edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 853da1672acbe6a84f1d69f1e21096115c60826aeaMathias Agopian Transform inverse() const; 863da1672acbe6a84f1d69f1e21096115c60826aeaMathias Agopian 87d12965934712ed0b9c1a264a6934dc0dad839ffdMathias Agopian // for debugging 88d12965934712ed0b9c1a264a6934dc0dad839ffdMathias Agopian void dump(const char* name) const; 89d12965934712ed0b9c1a264a6934dc0dad839ffdMathias Agopian 90edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectprivate: 91eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian struct mat33 { 92eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian vec3 v[3]; 93eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian inline const vec3& operator [] (int i) const { return v[i]; } 94eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian inline vec3& operator [] (int i) { return v[i]; } 95eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian }; 96eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian 97eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian enum { UNKNOWN_TYPE = 0x80000000 }; 98eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian 99eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian // assumes the last row is < 0 , 0 , 1 > 100eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian vec2 transform(const vec2& v) const; 101eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian vec3 transform(const vec3& v) const; 102eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian uint32_t type() const; 103eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian static bool absIsOne(float f); 104eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian static bool isZero(float f); 105eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian 106eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian mat33 mMatrix; 107eda65400f5ae301e26c5f52287d831f063069ec2Mathias Agopian mutable uint32_t mType; 108edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; 109edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 110edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// --------------------------------------------------------------------------- 111edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; // namespace android 112edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 113edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif /* ANDROID_TRANSFORM_H */ 114