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store camera characteristics in a variable, dont always refetch it

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This commit is contained in:
tibbi 2020-04-21 23:10:48 +02:00
parent 8de7262aa4
commit af049de119
1 changed files with 15 additions and 11 deletions
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26
app/src/main/kotlin/com/simplemobiletools/camera/views/CameraPreview.kt
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@ -68,6 +68,7 @@ class CameraPreview : ViewGroup, TextureView.SurfaceTextureListener, MyPreview {
private var mRotationAtCapture = 0
private var mZoomLevel = 1f
private var mZoomFingerSpacing = 0
private var mMaxZoomLevel = 1f
private var mLastFocusX = 0f
private var mLastFocusY = 0f
private var mIsFlashSupported = true
@ -88,6 +89,7 @@ class CameraPreview : ViewGroup, TextureView.SurfaceTextureListener, MyPreview {
private var mPreviewSize: Size? = null
private var mTargetUri: Uri? = null
private var mCameraDevice: CameraDevice? = null
private var mCameraCharacteristics: CameraCharacteristics? = null
private var mCaptureSession: CameraCaptureSession? = null
private var mPreviewRequestBuilder: CaptureRequest.Builder? = null
private var mPreviewRequest: CaptureRequest? = null
@ -226,15 +228,14 @@ class CameraPreview : ViewGroup, TextureView.SurfaceTextureListener, MyPreview {
}
private fun handleZoom(event: MotionEvent) {
val maxZoom = getCameraCharacteristics().get(CameraCharacteristics.SCALER_AVAILABLE_MAX_DIGITAL_ZOOM)!!
val sensorRect = getCameraCharacteristics().get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE) ?: return
val sensorRect = mCameraCharacteristics!!.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE) ?: return
val currentFingerSpacing = getFingerSpacing(event)
var delta = 0.05f
if (mZoomFingerSpacing != 0) {
if (currentFingerSpacing > mZoomFingerSpacing) {
if (maxZoom - mZoomLevel <= delta) {
delta = maxZoom - mZoomLevel
if (mMaxZoomLevel - mZoomLevel <= delta) {
delta = mMaxZoomLevel - mZoomLevel
}
mZoomLevel += delta
} else if (currentFingerSpacing < mZoomFingerSpacing) {
@ -274,7 +275,7 @@ class CameraPreview : ViewGroup, TextureView.SurfaceTextureListener, MyPreview {
}
private fun getCurrentResolution(): MySize {
val configMap = getCameraCharacteristics().get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)!!
val configMap = mCameraCharacteristics?.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP) ?: return MySize(0, 0)
val resIndex = if (mUseFrontCamera) {
if (mIsInVideoMode) {
mActivity.config.frontVideoResIndex
@ -311,8 +312,12 @@ class CameraPreview : ViewGroup, TextureView.SurfaceTextureListener, MyPreview {
}
mCameraId = cameraId
mCameraCharacteristics = characteristics
mMaxZoomLevel = mCameraCharacteristics?.get(CameraCharacteristics.SCALER_AVAILABLE_MAX_DIGITAL_ZOOM) ?: return
mZoomLevel = 1f
mActivity.config.lastUsedCamera = mCameraId
val configMap = getCameraCharacteristics().get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)!!
val configMap = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)!!
val currentResolution = getCurrentResolution()
if (mIsInVideoMode) {
@ -485,7 +490,7 @@ class CameraPreview : ViewGroup, TextureView.SurfaceTextureListener, MyPreview {
}
private fun getFrameRange(): Range<Int> {
val ranges = getCameraCharacteristics().get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES)!!
val ranges = mCameraCharacteristics?.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES) ?: return Range<Int>(0, 1)
var currRangeSize = -1
var currMinRange = 0
var result: Range<Int>? = null
@ -629,10 +634,9 @@ class CameraPreview : ViewGroup, TextureView.SurfaceTextureListener, MyPreview {
mCaptureSession!!.capture(build(), mCaptureCallback, mBackgroundHandler)
// touch-to-focus inspired by OpenCamera
val characteristics = getCameraCharacteristics()
if (characteristics.get(CameraCharacteristics.CONTROL_MAX_REGIONS_AF)!! >= 1) {
if (mCameraCharacteristics?.get(CameraCharacteristics.CONTROL_MAX_REGIONS_AF)!! >= 1) {
val focusArea = getFocusArea(x, y)
val sensorRect = characteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE)!!
val sensorRect = mCameraCharacteristics!!.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE)!!
val meteringRect = convertAreaToMeteringRectangle(sensorRect, focusArea)
set(CaptureRequest.CONTROL_AF_REGIONS, arrayOf(meteringRect))
}
@ -907,7 +911,7 @@ class CameraPreview : ViewGroup, TextureView.SurfaceTextureListener, MyPreview {
private fun openResolutionsDialog(openVideoResolutions: Boolean) {
val oldResolution = getCurrentResolution()
val configMap = getCameraCharacteristics().get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)!!
val configMap = mCameraCharacteristics?.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP) ?: return
val photoResolutions = configMap.getOutputSizes(ImageFormat.JPEG).map { MySize(it.width, it.height) } as ArrayList
val videoResolutions = getAvailableVideoSizes(configMap).map { MySize(it.width, it.height) } as ArrayList
ChangeResolutionDialog(mActivity, mUseFrontCamera, photoResolutions, videoResolutions, openVideoResolutions) {