FileDocCategorySizeDatePackage
ToGrayFilter.javaAPI DocAndroid 5.1 API2838Thu Mar 12 22:22:30 GMT 2015android.filterpacks.imageproc

ToGrayFilter

public class ToGrayFilter extends SimpleImageFilter
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Fields Summary
private boolean
mInvertSource
private int
mTileSize
private android.filterfw.core.MutableFrameFormat
mOutputFormat
private static final String
mColorToGray4Shader
Constructors Summary
public ToGrayFilter(String name)


       
        super(name, null);
Methods Summary
protected android.filterfw.core.ProgramgetNativeProgram(android.filterfw.core.FilterContext context)

        throw new RuntimeException("Native toGray not implemented yet!");
protected android.filterfw.core.ProgramgetShaderProgram(android.filterfw.core.FilterContext context)

        int inputChannels = getInputFormat("image").getBytesPerSample();
        if (inputChannels != 4) {
            throw new RuntimeException("Unsupported GL input channels: " +
                                       inputChannels + "! Channels must be 4!");
        }
        ShaderProgram program = new ShaderProgram(context, mColorToGray4Shader);
        program.setMaximumTileSize(mTileSize);
        if (mInvertSource)
            program.setSourceRect(0.0f, 1.0f, 1.0f, -1.0f);
        return program;
public voidsetupPorts()

        addMaskedInputPort("image", ImageFormat.create(ImageFormat.COLORSPACE_RGBA,
                                                       FrameFormat.TARGET_GPU));
        addOutputBasedOnInput("image", "image");