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android: Use a custom view for changing emulation aspect ratio

Credit to the Skyline team for the FixedRatioSurfaceView.
This commit is contained in:
Charles Lombardo 2023-06-05 20:24:36 -04:00
parent 2f7658bd75
commit c8b91b3a89
3 changed files with 62 additions and 1 deletions

View file

@ -14,6 +14,7 @@ import android.graphics.Color
import android.os.Bundle
import android.os.Handler
import android.os.Looper
import android.util.Rational
import android.util.TypedValue
import android.view.*
import android.widget.TextView
@ -36,6 +37,7 @@ import org.yuzu.yuzu_emu.YuzuApplication
import org.yuzu.yuzu_emu.activities.EmulationActivity
import org.yuzu.yuzu_emu.databinding.DialogOverlayAdjustBinding
import org.yuzu.yuzu_emu.databinding.FragmentEmulationBinding
import org.yuzu.yuzu_emu.features.settings.model.IntSetting
import org.yuzu.yuzu_emu.features.settings.model.Settings
import org.yuzu.yuzu_emu.features.settings.ui.SettingsActivity
import org.yuzu.yuzu_emu.features.settings.utils.SettingsFile
@ -158,6 +160,18 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
if (!DirectoryInitialization.areDirectoriesReady) {
DirectoryInitialization.start(requireContext())
}
binding.surfaceEmulation.setAspectRatio(
when (IntSetting.RENDERER_ASPECT_RATIO.int) {
0 -> Rational(16, 9)
1 -> Rational(4, 3)
2 -> Rational(21, 9)
3 -> Rational(16, 10)
4 -> null // Stretch
else -> Rational(16, 9)
}
)
emulationState.run(emulationActivity!!.isActivityRecreated)
}

View file

@ -0,0 +1,46 @@
// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
package org.yuzu.yuzu_emu.views
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,
attrs: AttributeSet? = null,
defStyleAttr: Int = 0
) : SurfaceView(context, attrs, defStyleAttr) {
private var aspectRatio: Float = 0f // (width / height), 0f is a special value for stretch
/**
* Sets the desired aspect ratio for this view
* @param ratio the ratio to force the view to, or null to stretch to fit
*/
fun setAspectRatio(ratio: Rational?) {
aspectRatio = ratio?.toFloat() ?: 0f
}
override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec)
val width = MeasureSpec.getSize(widthMeasureSpec)
val height = MeasureSpec.getSize(heightMeasureSpec)
if (aspectRatio != 0f) {
val newWidth: Int
val newHeight: Int
if (height * aspectRatio < width) {
newWidth = (height * aspectRatio).roundToInt()
newHeight = height
} else {
newWidth = width
newHeight = (width / aspectRatio).roundToInt()
}
setMeasuredDimension(newWidth, newHeight)
} else {
setMeasuredDimension(width, height)
}
}
}

View file

@ -13,10 +13,11 @@
android:layout_height="match_parent">
<!-- This is what everything is rendered to during emulation -->
<SurfaceView
<org.yuzu.yuzu_emu.views.FixedRatioSurfaceView
android:id="@+id/surface_emulation"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:focusable="false"
android:focusableInTouchMode="false" />