b79a3e301a
Separate matrix passed to shadow system into two parts, one for transforming the polygon XY points (using the actual draw matrix) and a separate one which respects correct 4x4 3d rotations and translations for determining Z values. Change-Id: I7e30a84774a8709df6b2241e8f51fc5583648fe8
143 lines
2.9 KiB
C++
143 lines
2.9 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HWUI_VECTOR_H
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#define ANDROID_HWUI_VECTOR_H
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namespace android {
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namespace uirenderer {
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///////////////////////////////////////////////////////////////////////////////
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// Classes
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///////////////////////////////////////////////////////////////////////////////
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struct Vector2 {
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float x;
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float y;
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Vector2() :
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x(0.0f), y(0.0f) {
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}
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Vector2(float px, float py) :
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x(px), y(py) {
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}
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float lengthSquared() const {
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return x * x + y * y;
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}
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float length() const {
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return sqrt(x * x + y * y);
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}
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void operator+=(const Vector2& v) {
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x += v.x;
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y += v.y;
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}
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void operator-=(const Vector2& v) {
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x -= v.x;
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y -= v.y;
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}
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void operator+=(const float v) {
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x += v;
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y += v;
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}
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void operator-=(const float v) {
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x -= v;
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y -= v;
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}
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void operator/=(float s) {
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x /= s;
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y /= s;
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}
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void operator*=(float s) {
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x *= s;
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y *= s;
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}
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Vector2 operator+(const Vector2& v) const {
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return Vector2(x + v.x, y + v.y);
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}
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Vector2 operator-(const Vector2& v) const {
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return Vector2(x - v.x, y - v.y);
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}
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Vector2 operator/(float s) const {
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return Vector2(x / s, y / s);
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}
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Vector2 operator*(float s) const {
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return Vector2(x * s, y * s);
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}
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void normalize() {
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float s = 1.0f / length();
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x *= s;
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y *= s;
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}
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Vector2 copyNormalized() const {
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Vector2 v(x, y);
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v.normalize();
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return v;
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}
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float dot(const Vector2& v) const {
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return x * v.x + y * v.y;
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}
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void dump() {
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ALOGD("Vector2[%.2f, %.2f]", x, y);
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}
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}; // class Vector2
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class Vector3 {
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public:
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float x;
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float y;
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float z;
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Vector3() :
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x(0.0f), y(0.0f), z(0.0f) {
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}
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Vector3(float px, float py, float pz) :
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x(px), y(py), z(pz) {
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}
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void dump() {
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ALOGD("Vector3[%.2f, %.2f, %.2f]", x, y, z);
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}
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};
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///////////////////////////////////////////////////////////////////////////////
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// Types
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///////////////////////////////////////////////////////////////////////////////
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typedef Vector2 vec2;
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}; // namespace uirenderer
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}; // namespace android
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#endif // ANDROID_HWUI_VECTOR_H
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