1 files changed, 95 insertions, 0 deletions
diff --git a/android/media/effect/SingleFilterEffect.java b/android/media/effect/SingleFilterEffect.java
new file mode 100644
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--- /dev/null
+++ b/android/media/effect/SingleFilterEffect.java
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+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+package android.media.effect;
+
+import android.filterfw.core.Filter;
+import android.filterfw.core.FilterFactory;
+import android.filterfw.core.FilterFunction;
+import android.filterfw.core.Frame;
+import android.media.effect.EffectContext;
+
+/**
+ * Effect subclass for effects based on a single Filter. Subclasses need only invoke the
+ * constructor with the correct arguments to obtain an Effect implementation.
+ *
+ * @hide
+ */
+public class SingleFilterEffect extends FilterEffect {
+
+    protected FilterFunction mFunction;
+    protected String mInputName;
+    protected String mOutputName;
+
+    /**
+     * Constructs a new FilterFunctionEffect.
+     *
+     * @param name The name of this effect (used to create it in the EffectFactory).
+     * @param filterClass The class of the filter to wrap.
+     * @param inputName The name of the input image port.
+     * @param outputName The name of the output image port.
+     * @param finalParameters Key-value pairs of final input port assignments.
+     */
+    public SingleFilterEffect(EffectContext context,
+                              String name,
+                              Class filterClass,
+                              String inputName,
+                              String outputName,
+                              Object... finalParameters) {
+        super(context, name);
+
+        mInputName = inputName;
+        mOutputName = outputName;
+
+        String filterName = filterClass.getSimpleName();
+        FilterFactory factory = FilterFactory.sharedFactory();
+        Filter filter = factory.createFilterByClass(filterClass, filterName);
+        filter.initWithAssignmentList(finalParameters);
+
+        mFunction = new FilterFunction(getFilterContext(), filter);
+    }
+
+    @Override
+    public void apply(int inputTexId, int width, int height, int outputTexId) {
+        beginGLEffect();
+
+        Frame inputFrame = frameFromTexture(inputTexId, width, height);
+        Frame outputFrame = frameFromTexture(outputTexId, width, height);
+
+        Frame resultFrame = mFunction.executeWithArgList(mInputName, inputFrame);
+
+        outputFrame.setDataFromFrame(resultFrame);
+
+        inputFrame.release();
+        outputFrame.release();
+        resultFrame.release();
+
+        endGLEffect();
+    }
+
+    @Override
+    public void setParameter(String parameterKey, Object value) {
+        mFunction.setInputValue(parameterKey, value);
+    }
+
+    @Override
+    public void release() {
+        mFunction.tearDown();
+        mFunction = null;
+    }
+}
+