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android: Properly adjust emulation surface aspect ratio

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Previously the emulation surface wouldn't respond properly to orientation changes. This would result in the screen appearing stretched when starting in one orientation and switching to another.

The code for calculating the bounds of the view have been changed to match the expected behavior now. Before the view would just match parent in height and width. Now instead of using setLeftTopRightBottom (which is intended to be used for animations) we pass newly calculated bounds for the view into super. Now the view bounds match the emulation output.

This also means that we don't need the overload for the SettingsActivity to launch it using an ActivityResultLauncher. We can just update the view in onResume.
This commit is contained in:
Charles Lombardo 2023-08-27 00:16:53 -04:00
parent 6c4abd23be
commit 338d6f29b1
3 changed files with 33 additions and 45 deletions
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13
src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsActivity.kt
View file

@ -11,7 +11,6 @@ import android.view.View
import android.view.ViewGroup.MarginLayoutParams
import android.widget.Toast
import androidx.activity.OnBackPressedCallback
import androidx.activity.result.ActivityResultLauncher
import androidx.activity.viewModels
import androidx.appcompat.app.AppCompatActivity
import androidx.core.view.ViewCompat
@ -246,17 +245,5 @@ class SettingsActivity : AppCompatActivity(), SettingsActivityView {
settings.putExtra(ARG_GAME_ID, gameId)
context.startActivity(settings)
}
fun launch(
context: Context,
launcher: ActivityResultLauncher<Intent>,
menuTag: String?,
gameId: String?
) {
val settings = Intent(context, SettingsActivity::class.java)
settings.putExtra(ARG_MENU_TAG, menuTag)
settings.putExtra(ARG_GAME_ID, gameId)
launcher.launch(settings)
}
}
}

17
src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt
View file

@ -7,7 +7,6 @@ import android.annotation.SuppressLint
import android.app.AlertDialog
import android.content.Context
import android.content.DialogInterface
import android.content.Intent
import android.content.SharedPreferences
import android.content.pm.ActivityInfo
import android.content.res.Configuration
@ -19,8 +18,6 @@ import android.util.Rational
import android.view.*
import android.widget.TextView
import androidx.activity.OnBackPressedCallback
import androidx.activity.result.ActivityResultLauncher
import androidx.activity.result.contract.ActivityResultContracts
import androidx.appcompat.widget.PopupMenu
import androidx.core.content.res.ResourcesCompat
import androidx.core.graphics.Insets
@ -66,8 +63,6 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
private var isInFoldableLayout = false
private lateinit var onReturnFromSettings: ActivityResultLauncher<Intent>
override fun onAttach(context: Context) {
super.onAttach(context)
if (context is EmulationActivity) {
@ -81,11 +76,6 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
.collect { updateFoldableLayout(context, it) }
}
}
onReturnFromSettings = context.activityResultRegistry.register(
"SettingsResult",
ActivityResultContracts.StartActivityForResult()
) { updateScreenLayout() }
} else {
throw IllegalStateException("EmulationFragment must have EmulationActivity parent")
}
@ -149,12 +139,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
}
R.id.menu_settings -> {
SettingsActivity.launch(
requireContext(),
onReturnFromSettings,
SettingsFile.FILE_NAME_CONFIG,
""
)
SettingsActivity.launch(requireContext(), SettingsFile.FILE_NAME_CONFIG, "")
true
}

48
src/android/app/src/main/java/org/yuzu/yuzu_emu/views/FixedRatioSurfaceView.kt
View file

@ -7,7 +7,6 @@ import android.content.Context
import android.util.AttributeSet
import android.util.Rational
import android.view.SurfaceView
import kotlin.math.roundToInt
class FixedRatioSurfaceView @JvmOverloads constructor(
context: Context,
@ -22,27 +21,44 @@ class FixedRatioSurfaceView @JvmOverloads constructor(
*/
fun setAspectRatio(ratio: Rational?) {
aspectRatio = ratio?.toFloat() ?: 0f
requestLayout()
}
override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec)
val width = MeasureSpec.getSize(widthMeasureSpec)
val height = MeasureSpec.getSize(heightMeasureSpec)
val displayWidth: Float = MeasureSpec.getSize(widthMeasureSpec).toFloat()
val displayHeight: Float = MeasureSpec.getSize(heightMeasureSpec).toFloat()
if (aspectRatio != 0f) {
val newWidth: Int
val newHeight: Int
if (height * aspectRatio < width) {
newWidth = (height * aspectRatio).roundToInt()
newHeight = height
val displayAspect = displayWidth / displayHeight
if (displayAspect < aspectRatio) {
// Max out width
val halfHeight = displayHeight / 2
val surfaceHeight = displayWidth / aspectRatio
val newTop: Float = halfHeight - (surfaceHeight / 2)
val newBottom: Float = halfHeight + (surfaceHeight / 2)
super.onMeasure(
widthMeasureSpec,
MeasureSpec.makeMeasureSpec(
newBottom.toInt() - newTop.toInt(),
MeasureSpec.EXACTLY
)
)
return
} else {
newWidth = width
newHeight = (width / aspectRatio).roundToInt()
// Max out height
val halfWidth = displayWidth / 2
val surfaceWidth = displayHeight * aspectRatio
val newLeft: Float = halfWidth - (surfaceWidth / 2)
val newRight: Float = halfWidth + (surfaceWidth / 2)
super.onMeasure(
MeasureSpec.makeMeasureSpec(
newRight.toInt() - newLeft.toInt(),
MeasureSpec.EXACTLY
),
heightMeasureSpec
)
return
}
val left = (width - newWidth) / 2
val top = (height - newHeight) / 2
setLeftTopRightBottom(left, top, left + newWidth, top + newHeight)
} else {
setLeftTopRightBottom(0, 0, width, height)
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec)
}
}