| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.display.color; |
| |
| import static com.android.server.display.color.DisplayTransformManager.LEVEL_COLOR_MATRIX_SATURATION; |
| |
| import android.content.Context; |
| import android.hardware.display.ColorDisplayManager; |
| import android.opengl.Matrix; |
| import android.util.Slog; |
| |
| import java.util.Arrays; |
| |
| /** Control the color transform for global device saturation. */ |
| public class GlobalSaturationTintController extends TintController { |
| |
| private final float[] mMatrixGlobalSaturation = new float[16]; |
| |
| @Override |
| public void setUp(Context context, boolean needsLinear) { |
| } |
| |
| @Override |
| public float[] getMatrix() { |
| return Arrays.copyOf(mMatrixGlobalSaturation, mMatrixGlobalSaturation.length); |
| } |
| |
| @Override |
| public void setMatrix(int saturationLevel) { |
| if (saturationLevel < 0) { |
| saturationLevel = 0; |
| } else if (saturationLevel > 100) { |
| saturationLevel = 100; |
| } |
| Slog.d(ColorDisplayService.TAG, "Setting saturation level: " + saturationLevel); |
| |
| if (saturationLevel == 100) { |
| setActivated(false); |
| Matrix.setIdentityM(mMatrixGlobalSaturation, 0); |
| } else { |
| setActivated(true); |
| float saturation = saturationLevel * 0.01f; |
| float desaturation = 1.0f - saturation; |
| float[] luminance = {0.231f * desaturation, 0.715f * desaturation, |
| 0.072f * desaturation}; |
| mMatrixGlobalSaturation[0] = luminance[0] + saturation; |
| mMatrixGlobalSaturation[1] = luminance[0]; |
| mMatrixGlobalSaturation[2] = luminance[0]; |
| mMatrixGlobalSaturation[4] = luminance[1]; |
| mMatrixGlobalSaturation[5] = luminance[1] + saturation; |
| mMatrixGlobalSaturation[6] = luminance[1]; |
| mMatrixGlobalSaturation[8] = luminance[2]; |
| mMatrixGlobalSaturation[9] = luminance[2]; |
| mMatrixGlobalSaturation[10] = luminance[2] + saturation; |
| } |
| } |
| |
| @Override |
| public int getLevel() { |
| return LEVEL_COLOR_MATRIX_SATURATION; |
| } |
| |
| @Override |
| public boolean isAvailable(Context context) { |
| return ColorDisplayManager.isColorTransformAccelerated(context); |
| } |
| } |