-
Notifications
You must be signed in to change notification settings - Fork 262
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[Sample] [Graphics] - Implementation of "Displaying UltraHDR (Fresco)…
… & (Coil)" (#86) * Create Fresco & Coil Samples For displaying UltraHDR * Update to code to combine into 1 sample * Update samples/README.md --------- Co-authored-by: Yacine Rezgui <[email protected]>
- Loading branch information
1 parent
b18e490
commit 4cd7c58
Showing
7 changed files
with
304 additions
and
121 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
260 changes: 260 additions & 0 deletions
260
...n/java/com/example/platform/graphics/ultrahdr/display/DisplayingUltraHDRUsing3PLibrary.kt
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,260 @@ | ||
| /* | ||
| * Copyright 2023 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 | ||
| * | ||
| * https://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.example.platform.graphics.ultrahdr.display | ||
|
|
||
| import android.content.pm.ActivityInfo | ||
| import android.graphics.Bitmap | ||
| import android.graphics.drawable.BitmapDrawable | ||
| import android.graphics.drawable.Drawable | ||
| import android.net.Uri | ||
| import android.os.Build.VERSION_CODES | ||
| import android.os.Bundle | ||
| import android.view.LayoutInflater | ||
| import android.view.View | ||
| import android.view.ViewGroup | ||
| import android.widget.RadioButton | ||
| import androidx.annotation.RequiresApi | ||
| import androidx.fragment.app.Fragment | ||
| import androidx.lifecycle.lifecycleScope | ||
| import coil.ImageLoader | ||
| import coil.request.ImageRequest | ||
| import com.bumptech.glide.Glide | ||
| import com.bumptech.glide.request.target.CustomTarget | ||
| import com.bumptech.glide.request.target.CustomViewTarget | ||
| import com.bumptech.glide.request.transition.Transition | ||
| import com.example.platform.graphics.ultrahdr.databinding.DisplayingUltrahdrUsing3pLibraryBinding | ||
| import com.facebook.common.executors.CallerThreadExecutor | ||
| import com.facebook.common.references.CloseableReference | ||
| import com.facebook.datasource.DataSource | ||
| import com.facebook.drawee.backends.pipeline.Fresco | ||
| import com.facebook.imagepipeline.datasource.BaseBitmapDataSubscriber | ||
| import com.facebook.imagepipeline.image.CloseableImage | ||
| import com.facebook.imagepipeline.request.ImageRequestBuilder | ||
| import com.google.android.catalog.framework.annotations.Sample | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.launch | ||
| import kotlinx.coroutines.withContext | ||
|
|
||
| @Sample( | ||
| name = "Displaying UltraHDR (3P Libraries)", | ||
| description = "This sample demonstrates using the various popular image loading library to" + | ||
| " detect the presence of a gainmap to enable HDR mode when displaying an UltraHDR image", | ||
| documentation = "https://github.com/bumptech/glide", | ||
| tags = ["UltraHDR"], | ||
| ) | ||
| @RequiresApi(VERSION_CODES.UPSIDE_DOWN_CAKE) | ||
| class DisplayingUltraHDRUsing3PLibrary : Fragment() { | ||
| private enum class Library(val value: Int) { | ||
| GLIDE(0), | ||
| FRESCO(1), | ||
| COIL(2); | ||
|
|
||
| companion object { | ||
| fun fromInt(value: Int) = Library.values().first { it.value == value } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Android ViewBinding. | ||
| */ | ||
| private var _binding: DisplayingUltrahdrUsing3pLibraryBinding? = null | ||
| private val binding get() = _binding!! | ||
|
|
||
| /** | ||
| * Current 3p library selected. | ||
| */ | ||
| private lateinit var currentLibrary: Library | ||
|
|
||
| override fun onCreate(savedInstanceState: Bundle?) { | ||
| super.onCreate(savedInstanceState) | ||
|
|
||
| // Initialize Fresco Library | ||
| if (!Fresco.hasBeenInitialized()) Fresco.initialize(requireContext()) | ||
| } | ||
|
|
||
| override fun onCreateView( | ||
| inflater: LayoutInflater, | ||
| container: ViewGroup?, | ||
| savedInstanceState: Bundle?, | ||
| ): View { | ||
| _binding = DisplayingUltrahdrUsing3pLibraryBinding.inflate(inflater, container, false) | ||
| return binding.root | ||
| } | ||
|
|
||
| override fun onViewCreated(view: View, savedInstanceState: Bundle?) { | ||
| super.onViewCreated(view, savedInstanceState) | ||
| binding.colorModeControls.setWindow(requireActivity().window) | ||
|
|
||
| // Disable color mode controls to demonstrate 3P libraries enabling hdr mode when a | ||
| // gainmap is is detected. | ||
| binding.colorModeControls.binding.ultrahdrColorModeSdr.isEnabled = false | ||
| binding.colorModeControls.binding.ultrahdrColorModeSdr.text = "SDR (Automatic)" | ||
| binding.colorModeControls.binding.ultrahdrColorModeHdr.isEnabled = false | ||
| binding.colorModeControls.binding.ultrahdrColorModeHdr.text = "HDR (Automatic)" | ||
|
|
||
| binding.librarySelectionGroup.setOnCheckedChangeListener { group, i -> | ||
| val selected = group.findViewById<RadioButton>(i) | ||
| val index = group.indexOfChild(selected) | ||
| currentLibrary = Library.fromInt(index) | ||
| loadWithSelectedLibrary(SDR_IMAGE_URL) | ||
| } | ||
|
|
||
| binding.optionSdrImage.setOnClickListener { loadWithSelectedLibrary(SDR_IMAGE_URL) } | ||
| binding.optionUltrahdrImage.setOnClickListener { loadWithSelectedLibrary(ULTRAHDR_IMAGE) } | ||
|
|
||
| // Initially load using Glide. | ||
| binding.modeGlide.isChecked = true | ||
| } | ||
|
|
||
| /** | ||
| * Load the image with the currently selected library. | ||
| */ | ||
| private fun loadWithSelectedLibrary(url: String) { | ||
| // Initially null out image bitmap | ||
| binding.imageContainer.setImageBitmap(null) | ||
|
|
||
| when (currentLibrary) { | ||
| Library.GLIDE -> loadImageWithGlide(url) | ||
| Library.FRESCO -> loadImageWithFresco(url) | ||
| Library.COIL -> loadImageWithCoil(url) | ||
| } | ||
|
|
||
| // Disable corresponding button. | ||
| when (url) { | ||
| SDR_IMAGE_URL -> { | ||
| binding.optionSdrImage.isEnabled = false | ||
| binding.optionUltrahdrImage.isEnabled = true | ||
| } | ||
|
|
||
| ULTRAHDR_IMAGE -> { | ||
| binding.optionSdrImage.isEnabled = true | ||
| binding.optionUltrahdrImage.isEnabled = false | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Load an image using [Glide]. | ||
| */ | ||
| private fun loadImageWithGlide(path: String) { | ||
| Glide.with(this) | ||
| .asBitmap() | ||
| .load(Uri.parse(path)) | ||
| .into(target) | ||
| } | ||
|
|
||
| /** | ||
| * Using [Glide]s [CustomTarget] class, we can access the given [Bitmap] to check for the | ||
| * presence of a gainmap, indicating that we should enable the HDR color mode. | ||
| * | ||
| * The same could be done with [CustomViewTarget] as well. | ||
| */ | ||
| private val target: CustomTarget<Bitmap> = object : CustomTarget<Bitmap>() { | ||
| override fun onResourceReady(resource: Bitmap, transition: Transition<in Bitmap>?) { | ||
| binding.imageContainer.setImageBitmap(resource) | ||
|
|
||
| // Set color mode of the activity to the correct color mode. | ||
| requireActivity().window.colorMode = when (resource.hasGainmap()) { | ||
| true -> ActivityInfo.COLOR_MODE_HDR | ||
| else -> ActivityInfo.COLOR_MODE_DEFAULT | ||
| } | ||
| } | ||
|
|
||
| override fun onLoadCleared(placeholder: Drawable?) { | ||
| // clear resources if need be. | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Load an image using [Fresco]. | ||
| */ | ||
| private fun loadImageWithFresco(path: String) { | ||
| val imageRequest = ImageRequestBuilder | ||
| .newBuilderWithSource(Uri.parse(path)) | ||
| .build() | ||
|
|
||
| // Use Fresco's ImagePipeline to fetch and decode image into Bitmap subscriber. | ||
| Fresco.getImagePipeline() | ||
| .fetchDecodedImage(imageRequest, this) | ||
| .apply { subscribe(subscriber, CallerThreadExecutor.getInstance()) } | ||
| } | ||
|
|
||
| /** | ||
| * Using [Fresco]'s [BaseBitmapDataSubscriber] class so we can access the given [Bitmap] to | ||
| * check for the, presence of a gainmap, indicating that we should enable the HDR color mode. | ||
| */ | ||
| private val subscriber = object : BaseBitmapDataSubscriber() { | ||
| override fun onNewResultImpl(bitmap: Bitmap?) { | ||
| binding.imageContainer.setImageBitmap(bitmap) | ||
| lifecycleScope.launch { | ||
| // Set color mode of the activity to the correct color mode. | ||
| requireActivity().window.colorMode = when (bitmap?.hasGainmap()) { | ||
| true -> ActivityInfo.COLOR_MODE_HDR | ||
| else -> ActivityInfo.COLOR_MODE_DEFAULT | ||
| } | ||
| } | ||
| } | ||
|
|
||
| override fun onFailureImpl(dataSource: DataSource<CloseableReference<CloseableImage>>) { | ||
| dataSource.close() | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Load an image using [ImageLoader] & [ImageRequest] from Coil. | ||
| */ | ||
| private fun loadImageWithCoil(url: String) { | ||
| lifecycleScope.launch(Dispatchers.IO) { | ||
| val loader = ImageLoader(requireContext()) | ||
| val request = ImageRequest.Builder(requireContext()) | ||
| .data(url) | ||
| .crossfade(true) | ||
| .crossfade(100) | ||
| .build() | ||
|
|
||
| val result = loader.execute(request) | ||
|
|
||
| // convert bitmap from drawable. | ||
| val bitmap = (result.drawable as BitmapDrawable).bitmap | ||
|
|
||
| // Activate HDR mode if bitmap has gain map | ||
| withContext(Dispatchers.Main) { | ||
| binding.imageContainer.setImageBitmap(bitmap) | ||
| requireActivity().window.colorMode = when (bitmap.hasGainmap()) { | ||
| true -> ActivityInfo.COLOR_MODE_HDR | ||
| else -> ActivityInfo.COLOR_MODE_DEFAULT | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| override fun onDetach() { | ||
| super.onDetach() | ||
| binding.colorModeControls.detach() | ||
| } | ||
|
|
||
| companion object { | ||
| /** | ||
| * Sample UltraHDR images paths | ||
| */ | ||
| private const val SDR_IMAGE_URL = | ||
| "https://raw.githubusercontent.com/android/platform-samples/main/samples/graphics/" + | ||
| "ultrahdr/src/main/assets/sdr/night_highrise.jpg" | ||
| private const val ULTRAHDR_IMAGE = | ||
| "https://raw.githubusercontent.com/android/platform-samples/main/samples/graphics/" + | ||
| "ultrahdr/src/main/assets/gainmaps/night_highrise.jpg" | ||
| } | ||
| } |
Oops, something went wrong.