fix: Take Orientation into account for PreviewView (#2565)

* fix: Take Orientation into account for `PreviewView`

* Log

* Take aspect ratio into account

* Reorganize code a bit

* Set LANDSCAPE_LEFT as default

* chore: Format
This commit is contained in:
Marc Rousavy
2024-02-15 13:30:14 +01:00
committed by GitHub
parent 5df5ca9adf
commit 83c0184796
6 changed files with 87 additions and 83 deletions

View File

@@ -1,29 +0,0 @@
package com.mrousavy.camera.extensions
import android.content.res.Resources
import android.hardware.camera2.CameraCharacteristics
import android.util.Size
import android.view.SurfaceHolder
fun getMaximumPreviewSize(): Size {
// See https://developer.android.com/reference/android/hardware/camera2/params/StreamConfigurationMap
// According to the Android Developer documentation, PREVIEW streams can have a resolution
// of up to the phone's display's resolution, with a maximum of 1920x1080.
val display1080p = Size(1920, 1080)
val displaySize = Size(
Resources.getSystem().displayMetrics.widthPixels,
Resources.getSystem().displayMetrics.heightPixels
)
val isHighResScreen = displaySize.bigger >= display1080p.bigger || displaySize.smaller >= display1080p.smaller
return if (isHighResScreen) display1080p else displaySize
}
fun CameraCharacteristics.getPreviewTargetSize(targetSize: Size?): Size {
val config = this.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)!!
val maximumPreviewSize = getMaximumPreviewSize()
val outputSizes = config.getOutputSizes(SurfaceHolder::class.java)
.filter { it.bigger <= maximumPreviewSize.bigger && it.smaller <= maximumPreviewSize.smaller }
return outputSizes.closestToOrMax(targetSize)
}

View File

@@ -0,0 +1,25 @@
package com.mrousavy.camera.extensions
import android.graphics.Point
import android.graphics.PointF
import android.util.Log
import android.util.Size
import com.mrousavy.camera.types.Orientation
fun Point.rotatedBy(fromSize: Size, toSize: Size, fromOrientation: Orientation, toOrientation: Orientation): Point {
val differenceDegrees = (fromOrientation.toDegrees() + toOrientation.toDegrees()) % 360
val difference = Orientation.fromRotationDegrees(differenceDegrees)
val normalizedPoint = PointF(this.x / fromSize.width.toFloat(), this.y / fromSize.height.toFloat())
val rotatedNormalizedPoint = when (difference) {
Orientation.PORTRAIT -> normalizedPoint
Orientation.PORTRAIT_UPSIDE_DOWN -> PointF(1 - normalizedPoint.x, 1 - normalizedPoint.y)
Orientation.LANDSCAPE_LEFT -> PointF(normalizedPoint.y, 1 - normalizedPoint.x)
Orientation.LANDSCAPE_RIGHT -> PointF(1 - normalizedPoint.y, normalizedPoint.x)
}
val rotatedX = rotatedNormalizedPoint.x * toSize.width
val rotatedY = rotatedNormalizedPoint.y * toSize.height
Log.i("ROTATE", "$this -> $normalizedPoint -> $difference -> $rotatedX, $rotatedY")
return Point(rotatedX.toInt(), rotatedY.toInt())
}