From 20518cc151d121a8d34e632105c86eb59f8c9f27 Mon Sep 17 00:00:00 2001
From: leonwind <leonwind@google.com>
Date: Fri, 23 Sep 2022 15:11:52 +0000
Subject: [PATCH] Add HSL Adjustments to the demo.

PiperOrigin-RevId: 476373520
(cherry picked from commit 7626f70cef1e6a431fbe2773a3a930904a67c803)
---
 .../transformer/ConfigurationActivity.java    | 40 +++++++++-
 .../demo/transformer/TransformerActivity.java | 12 ++-
 .../res/layout/hsl_adjustment_options.xml     | 73 +++++++++++++++++++
 .../src/main/res/values/strings.xml           |  4 +
 4 files changed, 126 insertions(+), 3 deletions(-)
 create mode 100644 demos/transformer/src/main/res/layout/hsl_adjustment_options.xml

diff --git a/demos/transformer/src/main/java/androidx/media3/demo/transformer/ConfigurationActivity.java b/demos/transformer/src/main/java/androidx/media3/demo/transformer/ConfigurationActivity.java
index d68050b966..1e633f1425 100644
--- a/demos/transformer/src/main/java/androidx/media3/demo/transformer/ConfigurationActivity.java
+++ b/demos/transformer/src/main/java/androidx/media3/demo/transformer/ConfigurationActivity.java
@@ -72,6 +72,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
   public static final String RGB_ADJUSTMENT_RED_SCALE = "rgb_adjustment_red_scale";
   public static final String RGB_ADJUSTMENT_GREEN_SCALE = "rgb_adjustment_green_scale";
   public static final String RGB_ADJUSTMENT_BLUE_SCALE = "rgb_adjustment_blue_scale";
+  public static final String HSL_ADJUSTMENTS_HUE = "hsl_adjustments_hue";
+  public static final String HSL_ADJUSTMENTS_SATURATION = "hsl_adjustments_saturation";
+  public static final String HSL_ADJUSTMENTS_LIGHTNESS = "hsl_adjustments_lightness";
   public static final int COLOR_FILTER_GRAYSCALE = 0;
   public static final int COLOR_FILTER_INVERTED = 1;
   public static final int COLOR_FILTER_SEPIA = 2;
@@ -110,6 +113,7 @@ public final class ConfigurationActivity extends AppCompatActivity {
     "Edge detector (Media Pipe)",
     "Color filters",
     "RGB Adjustments",
+    "HSL Adjustments",
     "Contrast",
     "Periodic vignette",
     "3D spin",
@@ -118,8 +122,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
   };
   private static final int COLOR_FILTERS_INDEX = 2;
   private static final int RGB_ADJUSTMENTS_INDEX = 3;
-  private static final int CONTRAST_INDEX = 4;
-  private static final int PERIODIC_VIGNETTE_INDEX = 5;
+  private static final int HSL_ADJUSTMENT_INDEX = 4;
+  private static final int CONTRAST_INDEX = 5;
+  private static final int PERIODIC_VIGNETTE_INDEX = 6;
   private static final String SAME_AS_INPUT_OPTION = "same as input";
   private static final float HALF_DIAGONAL = 1f / (float) Math.sqrt(2);
 
@@ -148,6 +153,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
   private float rgbAdjustmentGreenScale;
   private float rgbAdjustmentBlueScale;
   private float contrastValue;
+  private float hueAdjustment;
+  private float saturationAdjustment;
+  private float lightnessAdjustment;
   private float periodicVignetteCenterX;
   private float periodicVignetteCenterY;
   private float periodicVignetteInnerRadius;
@@ -308,6 +316,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
     bundle.putFloat(RGB_ADJUSTMENT_RED_SCALE, rgbAdjustmentRedScale);
     bundle.putFloat(RGB_ADJUSTMENT_GREEN_SCALE, rgbAdjustmentGreenScale);
     bundle.putFloat(RGB_ADJUSTMENT_BLUE_SCALE, rgbAdjustmentBlueScale);
+    bundle.putFloat(HSL_ADJUSTMENTS_HUE, hueAdjustment);
+    bundle.putFloat(HSL_ADJUSTMENTS_SATURATION, saturationAdjustment);
+    bundle.putFloat(HSL_ADJUSTMENTS_LIGHTNESS, lightnessAdjustment);
     bundle.putFloat(PERIODIC_VIGNETTE_CENTER_X, periodicVignetteCenterX);
     bundle.putFloat(PERIODIC_VIGNETTE_CENTER_Y, periodicVignetteCenterY);
     bundle.putFloat(PERIODIC_VIGNETTE_INNER_RADIUS, periodicVignetteInnerRadius);
@@ -384,6 +395,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
       case CONTRAST_INDEX:
         controlContrastSettings();
         break;
+      case HSL_ADJUSTMENT_INDEX:
+        controlHslAdjustmentSettings();
+        break;
       case PERIODIC_VIGNETTE_INDEX:
         controlPeriodicVignetteSettings();
         break;
@@ -441,6 +455,28 @@ public final class ConfigurationActivity extends AppCompatActivity {
         .show();
   }
 
+  private void controlHslAdjustmentSettings() {
+    View dialogView =
+        getLayoutInflater().inflate(R.layout.hsl_adjustment_options, /* root= */ null);
+    Slider hueAdjustmentSlider = checkNotNull(dialogView.findViewById(R.id.hsl_adjustments_hue));
+    Slider saturationAdjustmentSlider =
+        checkNotNull(dialogView.findViewById(R.id.hsl_adjustments_saturation));
+    Slider lightnessAdjustmentSlider =
+        checkNotNull(dialogView.findViewById(R.id.hsl_adjustment_lightness));
+    new AlertDialog.Builder(/* context= */ this)
+        .setTitle(R.string.hsl_adjustment_options)
+        .setView(dialogView)
+        .setPositiveButton(
+            android.R.string.ok,
+            (DialogInterface dialogInterface, int i) -> {
+              hueAdjustment = hueAdjustmentSlider.getValue();
+              saturationAdjustment = saturationAdjustmentSlider.getValue();
+              lightnessAdjustment = lightnessAdjustmentSlider.getValue();
+            })
+        .create()
+        .show();
+  }
+
   private void controlPeriodicVignetteSettings() {
     View dialogView =
         getLayoutInflater().inflate(R.layout.periodic_vignette_options, /* root= */ null);
diff --git a/demos/transformer/src/main/java/androidx/media3/demo/transformer/TransformerActivity.java b/demos/transformer/src/main/java/androidx/media3/demo/transformer/TransformerActivity.java
index eb0dde452f..0428d301af 100644
--- a/demos/transformer/src/main/java/androidx/media3/demo/transformer/TransformerActivity.java
+++ b/demos/transformer/src/main/java/androidx/media3/demo/transformer/TransformerActivity.java
@@ -44,6 +44,7 @@ import androidx.media3.common.util.Util;
 import androidx.media3.effect.Contrast;
 import androidx.media3.effect.GlEffect;
 import androidx.media3.effect.GlTextureProcessor;
+import androidx.media3.effect.HslAdjustment;
 import androidx.media3.effect.RgbAdjustment;
 import androidx.media3.effect.RgbFilter;
 import androidx.media3.effect.RgbMatrix;
@@ -344,9 +345,18 @@ public final class TransformerActivity extends AppCompatActivity {
                   .build());
         }
         if (selectedEffects[4]) {
-          effects.add(new Contrast(bundle.getFloat(ConfigurationActivity.CONTRAST_VALUE)));
+          effects.add(
+              new HslAdjustment.Builder()
+                  .adjustHue(bundle.getFloat(ConfigurationActivity.HSL_ADJUSTMENTS_HUE))
+                  .adjustSaturation(
+                      bundle.getFloat(ConfigurationActivity.HSL_ADJUSTMENTS_SATURATION))
+                  .adjustLightness(bundle.getFloat(ConfigurationActivity.HSL_ADJUSTMENTS_LIGHTNESS))
+                  .build());
         }
         if (selectedEffects[5]) {
+          effects.add(new Contrast(bundle.getFloat(ConfigurationActivity.CONTRAST_VALUE)));
+        }
+        if (selectedEffects[6]) {
           effects.add(
               (GlEffect)
                   (Context context, boolean useHdr) ->
diff --git a/demos/transformer/src/main/res/layout/hsl_adjustment_options.xml b/demos/transformer/src/main/res/layout/hsl_adjustment_options.xml
new file mode 100644
index 0000000000..7b847ad871
--- /dev/null
+++ b/demos/transformer/src/main/res/layout/hsl_adjustment_options.xml
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2022 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.
+  -->
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+xmlns:app="http://schemas.android.com/apk/res-auto"
+xmlns:tools="http://schemas.android.com/tools"
+android:layout_width="fill_parent"
+android:layout_height="fill_parent"
+tools:context=".ConfigurationActivity">
+
+<TableLayout
+  android:layout_width="fill_parent"
+  android:layout_height="wrap_content"
+  android:stretchColumns="1"
+  android:layout_marginTop="32dp"
+  android:measureWithLargestChild="true"
+  android:paddingLeft="24dp"
+  android:paddingRight="12dp"
+  app:layout_constraintEnd_toEndOf="parent"
+  app:layout_constraintStart_toStartOf="parent"
+  app:layout_constraintTop_toTopOf="parent"
+  app:layout_constraintBottom_toBottomOf="parent">
+  <TableRow
+    android:layout_weight="1"
+    android:gravity="center_vertical" >
+    <TextView
+      android:text="@string/hue_adjustment" />
+    <com.google.android.material.slider.Slider
+      android:id="@+id/hsl_adjustments_hue"
+      android:valueFrom="-360"
+      android:value="0"
+      android:valueTo="360"
+      android:layout_gravity="right"/>
+  </TableRow>
+  <TableRow
+    android:layout_weight="1"
+    android:gravity="center_vertical" >
+    <TextView
+      android:text="@string/saturation_adjustment" />
+    <com.google.android.material.slider.Slider
+      android:id="@+id/hsl_adjustments_saturation"
+      android:valueFrom="-100"
+      android:value="0"
+      android:valueTo="100"
+      android:layout_gravity="right"/>
+  </TableRow>
+  <TableRow
+    android:layout_weight="1"
+    android:gravity="center_vertical" >
+    <TextView
+      android:text="@string/lightness_adjustment" />
+    <com.google.android.material.slider.Slider
+      android:id="@+id/hsl_adjustment_lightness"
+      android:valueFrom="-100"
+      android:value="0"
+      android:valueTo="100"
+      android:layout_gravity="right"/>
+  </TableRow>
+</TableLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/demos/transformer/src/main/res/values/strings.xml b/demos/transformer/src/main/res/values/strings.xml
index db04cb5885..8f94de797c 100644
--- a/demos/transformer/src/main/res/values/strings.xml
+++ b/demos/transformer/src/main/res/values/strings.xml
@@ -55,4 +55,8 @@
   <string name="center_x">Center X</string>
   <string name="center_y">Center Y</string>
   <string name="radius_range">Radius range</string>
+  <string name="hsl_adjustment_options" translatable="false">HSL Adjustment Options</string>
+  <string name="hue_adjustment">Hue Adjustment</string>
+  <string name="saturation_adjustment">Saturation Adjustment</string>
+  <string name="lightness_adjustment">Lightness Adjustment</string>
 </resources>