Setting camera texture

Author: abhishekk06

app/src/main/java/com/android/example/camerax/tflite/CameraActivity.kt

@@ -88,9 +88,9 @@ class CameraActivity : AppCompatActivity(), GLSurfaceView.Renderer {
             ImageProcessor.Builder()
                 .add(ResizeWithCropOrPadOp(cropSize, cropSize))
                 .add(
-                    ResizeOp(
-                        tfInputSize.height, tfInputSize.width, ResizeOp.ResizeMethod.NEAREST_NEIGHBOR
-                    )
+                        ResizeOp(
+                                tfInputSize.height, tfInputSize.width, ResizeOp.ResizeMethod.NEAREST_NEIGHBOR
+                        )
                 )
                 .add(Rot90Op(imageRotationDegrees / 90))
                 .add(NormalizeOp(0f, 1f))
@@ -100,8 +100,8 @@ class CameraActivity : AppCompatActivity(), GLSurfaceView.Renderer {
 
     private val tflite by lazy {
         Interpreter(
-            FileUtil.loadMappedFile(this, MODEL_PATH),
-            Interpreter.Options().addDelegate(NnApiDelegate())
+                FileUtil.loadMappedFile(this, MODEL_PATH),
+                Interpreter.Options().addDelegate(NnApiDelegate())
         )
     }
 
@@ -172,9 +172,9 @@ class CameraActivity : AppCompatActivity(), GLSurfaceView.Renderer {
 
             // Set up the view finder use case to display camera preview
             val preview = Preview.Builder()
-                .setTargetAspectRatio(AspectRatio.RATIO_4_3)
-                .setTargetRotation(view_finder.display.rotation)
-                .build()
+                    .setTargetAspectRatio(AspectRatio.RATIO_4_3)
+                    .setTargetRotation(view_finder.display.rotation)
+                    .build()
 
             // Obtain the current frame from ARSession. When the configuration is set to
             // UpdateMode.BLOCKING (it is by default), this will throttle the rendering to the
@@ -271,7 +271,7 @@ class CameraActivity : AppCompatActivity(), GLSurfaceView.Renderer {
             // Apply declared configs to CameraX using the same lifecycle owner
             cameraProvider.unbindAll()
             val camera = cameraProvider.bindToLifecycle(
-                this as LifecycleOwner, cameraSelector, preview/*, imageAnalysis*/
+                    this as LifecycleOwner, cameraSelector, preview/*, imageAnalysis*/
             )
 
             // Use the camera object to link our preview use case with the view
@@ -316,10 +316,10 @@ class CameraActivity : AppCompatActivity(), GLSurfaceView.Renderer {
 
         // Step 1: map location to the preview coordinates
         val previewLocation = RectF(
-            location.left * view_finder.width,
-            location.top * view_finder.height,
-            location.right * view_finder.width,
-            location.bottom * view_finder.height
+                location.left * view_finder.width,
+                location.top * view_finder.height,
+                location.right * view_finder.width,
+                location.bottom * view_finder.height
         )
 
         // Step 2: compensate for camera sensor orientation and mirroring
@@ -330,10 +330,10 @@ class CameraActivity : AppCompatActivity(), GLSurfaceView.Renderer {
             (isFrontFacing && !isFlippedOrientation)
         ) {
             RectF(
-                view_finder.width - previewLocation.right,
-                view_finder.height - previewLocation.bottom,
-                view_finder.width - previewLocation.left,
-                view_finder.height - previewLocation.top
+                    view_finder.width - previewLocation.right,
+                    view_finder.height - previewLocation.bottom,
+                    view_finder.width - previewLocation.left,
+                    view_finder.height - previewLocation.top
             )
         } else {
             previewLocation
@@ -346,17 +346,17 @@ class CameraActivity : AppCompatActivity(), GLSurfaceView.Renderer {
         val midY = (rotatedLocation.top + rotatedLocation.bottom) / 2f
         return if (view_finder.width < view_finder.height) {
             RectF(
-                midX - (1f + margin) * requestedRatio * rotatedLocation.width() / 2f,
-                midY - (1f - margin) * rotatedLocation.height() / 2f,
-                midX + (1f + margin) * requestedRatio * rotatedLocation.width() / 2f,
-                midY + (1f - margin) * rotatedLocation.height() / 2f
+                    midX - (1f + margin) * requestedRatio * rotatedLocation.width() / 2f,
+                    midY - (1f - margin) * rotatedLocation.height() / 2f,
+                    midX + (1f + margin) * requestedRatio * rotatedLocation.width() / 2f,
+                    midY + (1f - margin) * rotatedLocation.height() / 2f
             )
         } else {
             RectF(
-                midX - (1f - margin) * rotatedLocation.width() / 2f,
-                midY - (1f + margin) * requestedRatio * rotatedLocation.height() / 2f,
-                midX + (1f - margin) * rotatedLocation.width() / 2f,
-                midY + (1f + margin) * requestedRatio * rotatedLocation.height() / 2f
+                    midX - (1f - margin) * rotatedLocation.width() / 2f,
+                    midY - (1f + margin) * requestedRatio * rotatedLocation.height() / 2f,
+                    midX + (1f - margin) * rotatedLocation.width() / 2f,
+                    midY + (1f + margin) * requestedRatio * rotatedLocation.height() / 2f
             )
         }
     }
@@ -445,6 +445,8 @@ class CameraActivity : AppCompatActivity(), GLSurfaceView.Renderer {
             val approximateDistanceMeters = 2.0f
             // Performs a ray cast given a screen tap position.
             val results = frame.hitTestInstantPlacement(0F, 0F, approximateDistanceMeters)
+            val displayRotation = display!!.rotation
+            session.setDisplayGeometry(displayRotation, 256, 256)
             if (results.isNotEmpty()) {
                 val point = results[0].trackable as InstantPlacementPoint
                 // Create an Anchor from the point's pose.