1 files changed, 103 insertions, 0 deletions
diff --git a/media/mca/filterpacks/java/android/filterpacks/imageproc/ToRGBAFilter.java b/media/mca/filterpacks/java/android/filterpacks/imageproc/ToRGBAFilter.java
new file mode 100644
index 0000000..ab4814f
--- /dev/null
+++ b/media/mca/filterpacks/java/android/filterpacks/imageproc/ToRGBAFilter.java
@@ -0,0 +1,103 @@
+/*
+ * 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.filterpacks.imageproc;
+
+import android.filterfw.core.Filter;
+import android.filterfw.core.FilterContext;
+import android.filterfw.core.Frame;
+import android.filterfw.core.FrameFormat;
+import android.filterfw.core.KeyValueMap;
+import android.filterfw.core.MutableFrameFormat;
+import android.filterfw.core.NativeProgram;
+import android.filterfw.core.NativeFrame;
+import android.filterfw.core.Program;
+import android.filterfw.core.ShaderProgram;
+import android.filterfw.format.ImageFormat;
+
+import android.util.Log;
+
+/**
+ * @hide
+ */
+public class ToRGBAFilter extends Filter {
+
+    private int mInputBPP;
+    private Program mProgram;
+    private FrameFormat mLastFormat = null;
+
+    public ToRGBAFilter(String name) {
+        super(name);
+    }
+
+    @Override
+    public void setupPorts() {
+        MutableFrameFormat mask = new MutableFrameFormat(FrameFormat.TYPE_BYTE,
+                                                         FrameFormat.TARGET_NATIVE);
+        mask.setDimensionCount(2);
+        addMaskedInputPort("image", mask);
+        addOutputBasedOnInput("image", "image");
+    }
+
+    @Override
+    public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) {
+        return getConvertedFormat(inputFormat);
+    }
+
+    public FrameFormat getConvertedFormat(FrameFormat format) {
+        MutableFrameFormat result = format.mutableCopy();
+        result.setMetaValue(ImageFormat.COLORSPACE_KEY, ImageFormat.COLORSPACE_RGBA);
+        result.setBytesPerSample(4);
+        return result;
+    }
+
+    public void createProgram(FilterContext context, FrameFormat format) {
+        mInputBPP = format.getBytesPerSample();
+        if (mLastFormat != null && mLastFormat.getBytesPerSample() == mInputBPP) return;
+        mLastFormat = format;
+        switch (mInputBPP) {
+            case 1:
+                mProgram = new NativeProgram("filterpack_imageproc", "gray_to_rgba");
+                break;
+            case 3:
+                mProgram = new NativeProgram("filterpack_imageproc", "rgb_to_rgba");
+                break;
+            default:
+                throw new RuntimeException("Unsupported BytesPerPixel: " + mInputBPP + "!");
+        }
+    }
+
+    @Override
+    public void process(FilterContext context) {
+        // Get input frame
+        Frame input = pullInput("image");
+        createProgram(context, input.getFormat());
+
+        // Create output frame
+        Frame output = context.getFrameManager().newFrame(getConvertedFormat(input.getFormat()));
+
+        // Process
+        mProgram.process(input, output);
+
+        // Push output
+        pushOutput("image", output);
+
+        // Release pushed frame
+        output.release();
+    }
+
+}