165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/* 265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Copyright (C) 2011 The Android Open Source Project 365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Licensed under the Apache License, Version 2.0 (the "License"); 565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * you may not use this file except in compliance with the License. 665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * You may obtain a copy of the License at 765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * http://www.apache.org/licenses/LICENSE-2.0 965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 1065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Unless required by applicable law or agreed to in writing, software 1165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * distributed under the License is distributed on an "AS IS" BASIS, 1265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * See the License for the specific language governing permissions and 1465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * limitations under the License. 1565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 1665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn#ifndef ANDROID_FILTERFW_CORE_GEOMETRY_H 1865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn#define ANDROID_FILTERFW_CORE_GEOMETRY_H 1965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn#include <vector> 2165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennnamespace android { 2365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennnamespace filterfw { 2465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn// This is an initial implementation of some geometrical structures. This is 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn// likely to grow and become more sophisticated in the future. 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennclass Point { 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public: 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point() : x_(0.0f), y_(0.0f) {} 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point(float x, float y) : x_(x), y_(y) {} 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float x() const { return x_; } 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float y() const { return y_; } 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float Length() const; 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn bool ScaleTo(float new_length); 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn static float Distance(const Point& p0, const Point& p1); 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Add more of these as needed: 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point operator+(const Point& other) const; 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point operator-(const Point& other) const; 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point operator*(float factor) const; 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn void Rotate90Clockwise(); 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private: 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float x_, y_; 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn}; 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennclass Quad { 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public: 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Quad() : points_(4) {} 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn virtual ~Quad() {} 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Quad(const Point& p0, const Point& p1, const Point& p2, const Point& p3) 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn : points_(4) { 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn points_[0] = p0; 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn points_[1] = p1; 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn points_[2] = p2; 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn points_[3] = p3; 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn const std::vector<Point>& points() const { return points_; } 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn const Point& point(int ix) const; 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn protected: 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn std::vector<Point> points_; 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn}; 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennstruct Rect { 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float x, y, width, height; 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Rect() { 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn x = y = 0.0f; 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn width = height = 1.0f; 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Rect(float x, float y, float width, float height) { 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn this->x = x; 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn this->y = y; 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn this->width = width; 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn this->height = height; 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn bool ExpandToAspectRatio(float ratio); 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn bool ExpandToMinLength(float length); 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn bool ScaleWithLengthLimit(float factor, float max_length); 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn}; 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} // namespace filterfw 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} // namespace android 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn#endif // ANDROID_FILTERFW_CORE_GEOMETRY_H 95