From fa703d3a1d4bbb05a4f64fc276e669326ed8c9a3 Mon Sep 17 00:00:00 2001
From: JRoberts <8711996+jr-simplex@users.noreply.github.com>
Date: Thu, 14 Jul 2022 12:13:22 +0400
Subject: [PATCH 1/2] android: scale bitmap down when loading, closes #805
 (#812)

---
 .../chat/simplex/app/views/helpers/Util.kt    | 41 ++++++++++++++++---
 1 file changed, 36 insertions(+), 5 deletions(-)

diff --git a/apps/android/app/src/main/java/chat/simplex/app/views/helpers/Util.kt b/apps/android/app/src/main/java/chat/simplex/app/views/helpers/Util.kt
index 2235a82cbc..1e635aba66 100644
--- a/apps/android/app/src/main/java/chat/simplex/app/views/helpers/Util.kt
+++ b/apps/android/app/src/main/java/chat/simplex/app/views/helpers/Util.kt
@@ -27,12 +27,10 @@ import chat.simplex.app.BuildConfig
 import chat.simplex.app.SimplexApp
 import chat.simplex.app.model.CIFile
 import kotlinx.coroutines.*
-import java.io.File
-import java.io.FileOutputStream
+import java.io.*
 import java.text.SimpleDateFormat
 import java.util.*
-import kotlin.math.log2
-import kotlin.math.pow
+import kotlin.math.*
 
 fun withApi(action: suspend CoroutineScope.() -> Unit): Job = withScope(GlobalScope, action)
 
@@ -245,7 +243,7 @@ fun getLoadedImage(context: Context, file: CIFile?): Bitmap? {
       val uri = FileProvider.getUriForFile(context, "${BuildConfig.APPLICATION_ID}.provider", File(filePath))
       val parcelFileDescriptor = context.contentResolver.openFileDescriptor(uri, "r")
       val fileDescriptor = parcelFileDescriptor?.fileDescriptor
-      val image = BitmapFactory.decodeFileDescriptor(fileDescriptor)
+      val image = decodeSampledBitmapFromFileDescriptor(fileDescriptor, 1000, 1000)
       parcelFileDescriptor?.close()
       image
     } catch (e: Exception) {
@@ -256,6 +254,39 @@ fun getLoadedImage(context: Context, file: CIFile?): Bitmap? {
   }
 }
 
+// https://developer.android.com/topic/performance/graphics/load-bitmap#load-bitmap
+private fun decodeSampledBitmapFromFileDescriptor(fileDescriptor: FileDescriptor?, reqWidth: Int, reqHeight: Int): Bitmap {
+  // First decode with inJustDecodeBounds=true to check dimensions
+  return BitmapFactory.Options().run {
+    inJustDecodeBounds = true
+    BitmapFactory.decodeFileDescriptor(fileDescriptor, null, this)
+    // Calculate inSampleSize
+    inSampleSize = calculateInSampleSize(this, reqWidth, reqHeight)
+    // Decode bitmap with inSampleSize set
+    inJustDecodeBounds = false
+
+    BitmapFactory.decodeFileDescriptor(fileDescriptor, null, this)
+  }
+}
+
+private fun calculateInSampleSize(options: BitmapFactory.Options, reqWidth: Int, reqHeight: Int): Int {
+  // Raw height and width of image
+  val (height: Int, width: Int) = options.run { outHeight to outWidth }
+  var inSampleSize = 1
+
+  if (height > reqHeight || width > reqWidth) {
+    val halfHeight: Int = height / 2
+    val halfWidth: Int = width / 2
+    // Calculate the largest inSampleSize value that is a power of 2 and keeps both
+    // height and width larger than the requested height and width.
+    while (halfHeight / inSampleSize >= reqHeight && halfWidth / inSampleSize >= reqWidth) {
+      inSampleSize *= 2
+    }
+  }
+
+  return inSampleSize
+}
+
 fun getFileName(context: Context, uri: Uri): String? {
   return context.contentResolver.query(uri, null, null, null, null)?.use { cursor ->
     val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)

From 66a8267b114f04fa9445e62c06039a5013deb42c Mon Sep 17 00:00:00 2001
From: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>
Date: Sat, 16 Jul 2022 09:13:05 +0100
Subject: [PATCH 2/2] android: version 3.0.1 (44)

---
 apps/android/app/build.gradle | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/apps/android/app/build.gradle b/apps/android/app/build.gradle
index b5d1b2d6be..c3c51fbe9b 100644
--- a/apps/android/app/build.gradle
+++ b/apps/android/app/build.gradle
@@ -11,8 +11,8 @@ android {
         applicationId "chat.simplex.app"
         minSdk 29
         targetSdk 32
-        versionCode 43
-        versionName "3.0"
+        versionCode 44
+        versionName "3.0.1"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         ndk {