Camera and Camera2 preview is rendered via OpenGL textures and can be modified on CPU via C++ code. No OpenCL yet.

samples/android/tutorial-4-opencl/.project

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+    <name>OpenCV Tutorial 4 - Use OpenCL</name>
+    <comment></comment>
+    <projects>
+    </projects>
+    <buildSpec>
+        <buildCommand>
+            <name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
+            <triggers>clean,full,incremental,</triggers>
+            <arguments>
+            </arguments>
+        </buildCommand>
+        <buildCommand>
+            <name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
+            <arguments>
+            </arguments>
+        </buildCommand>
+        <buildCommand>
+            <name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
+            <arguments>
+            </arguments>
+        </buildCommand>
+        <buildCommand>
+            <name>org.eclipse.jdt.core.javabuilder</name>
+            <arguments>
+            </arguments>
+        </buildCommand>
+        <buildCommand>
+            <name>com.android.ide.eclipse.adt.ApkBuilder</name>
+            <arguments>
+            </arguments>
+        </buildCommand>
+        <buildCommand>
+            <name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
+            <triggers>full,incremental,</triggers>
+            <arguments>
+            </arguments>
+        </buildCommand>
+    </buildSpec>
+    <natures>
+        <nature>com.android.ide.eclipse.adt.AndroidNature</nature>
+        <nature>org.eclipse.jdt.core.javanature</nature>
+        <nature>org.eclipse.cdt.core.cnature</nature>
+        <nature>org.eclipse.cdt.core.ccnature</nature>
+        <nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
+        <nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+    </natures>
+</projectDescription>