java.awt.Transparency Java Examples

/**
 * Create a pixmap-based SurfaceData object
 */
protected SurfaceData initAcceleratedSurface() {
    SurfaceData sData;

    try {
        X11GraphicsConfig gc = (X11GraphicsConfig)vImg.getGraphicsConfig();
        ColorModel cm = gc.getColorModel();
        long drawable = 0;
        if (context instanceof Long) {
            drawable = ((Long)context).longValue();
        }
        sData = X11SurfaceData.createData(gc,
                                          vImg.getWidth(),
                                          vImg.getHeight(),
                                          cm, vImg, drawable,
                                          Transparency.OPAQUE);
    } catch (NullPointerException ex) {
        sData = null;
    } catch (OutOfMemoryError er) {
        sData = null;
    }

    return sData;
}
 

/**
 * Returns the custom buffered image, which mostly identical to
 * BufferedImage.(w,h,TYPE_3BYTE_BGR), but uses the bigger scanlineStride.
 * This means that the raster will have gaps, between the rows.
 */
private static BufferedImage makeCustomManagedBI() {
    int w = 511, h = 255;
    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
    int[] nBits = {8, 8, 8};
    int[] bOffs = {2, 1, 0};
    ColorModel colorModel = new ComponentColorModel(cs, nBits, false, false,
                                                    Transparency.OPAQUE,
                                                    DataBuffer.TYPE_BYTE);
    WritableRaster raster =
            Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, w, h,
                                           w * 3 + 2, 3, bOffs, null);
    BufferedImage bi = new BufferedImage(colorModel, raster, true, null);
    SunWritableRaster.makeTrackable(raster.getDataBuffer());
    SunWritableRaster.markDirty(bi);
    return bi;
}
 

@Override
public ColorModel getColorModel(int transparency) {
    switch (transparency) {
    case Transparency.OPAQUE:
        // REMIND: once the ColorModel spec is changed, this should be
        //         an opaque premultiplied DCM...
        return new DirectColorModel(24, 0xff0000, 0xff00, 0xff);
    case Transparency.BITMASK:
        return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);
    case Transparency.TRANSLUCENT:
        ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        return new DirectColorModel(cs, 32,
                                    0xff0000, 0xff00, 0xff, 0xff000000,
                                    true, DataBuffer.TYPE_INT);
    default:
        return null;
    }
}
 

public GLXVolatileSurfaceManager(SunVolatileImage vImg, Object context) {
    super(vImg, context);

    /*
     * We will attempt to accelerate this image only under the
     * following conditions:
     *   - the image is opaque OR
     *   - the image is translucent AND
     *       - the GraphicsConfig supports the FBO extension OR
     *       - the GraphicsConfig has a stored alpha channel
     */
    int transparency = vImg.getTransparency();
    GLXGraphicsConfig gc = (GLXGraphicsConfig)vImg.getGraphicsConfig();
    accelerationEnabled =
        (transparency == Transparency.OPAQUE) ||
        ((transparency == Transparency.TRANSLUCENT) &&
         (gc.isCapPresent(CAPS_EXT_FBOBJECT) ||
          gc.isCapPresent(CAPS_STORED_ALPHA)));
}
 

@Override
public ColorModel getColorModel(int transparency) {
    switch (transparency) {
    case Transparency.OPAQUE:
        // REMIND: once the ColorModel spec is changed, this should be
        //         an opaque premultiplied DCM...
        return new DirectColorModel(24, 0xff0000, 0xff00, 0xff);
    case Transparency.BITMASK:
        return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);
    case Transparency.TRANSLUCENT:
        ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        return new DirectColorModel(cs, 32,
                                    0xff0000, 0xff00, 0xff, 0xff000000,
                                    true, DataBuffer.TYPE_INT);
    default:
        return null;
    }
}
 

private boolean initSurfaceNow() {
    boolean isOpaque = (getTransparency() == Transparency.OPAQUE);
    switch (type) {
        case RT_PLAIN:
            return initRTSurface(getNativeOps(), isOpaque);
        case TEXTURE:
            return initTexture(getNativeOps(), false/*isRTT*/, isOpaque);
        case RT_TEXTURE:
            return initTexture(getNativeOps(), true/*isRTT*/,  isOpaque);
        // REMIND: we may want to pass the exact type to the native
        // level here so that we could choose the right presentation
        // interval for the frontbuffer (immediate vs v-synced)
        case WINDOW:
        case FLIP_BACKBUFFER:
            return initFlipBackbuffer(getNativeOps(), peer.getData(),
                                      backBuffersNum, swapEffect,
                                      syncType.id());
        default:
            return false;
    }
}
 

@Override
public ColorModel getColorModel(int transparency) {
    switch (transparency) {
    case Transparency.OPAQUE:
        // REMIND: once the ColorModel spec is changed, this should be
        //         an opaque premultiplied DCM...
        return new DirectColorModel(24, 0xff0000, 0xff00, 0xff);
    case Transparency.BITMASK:
        return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);
    case Transparency.TRANSLUCENT:
        ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        return new DirectColorModel(cs, 32,
                                    0xff0000, 0xff00, 0xff, 0xff000000,
                                    true, DataBuffer.TYPE_INT);
    default:
        return null;
    }
}
 

protected boolean scaleSurfaceData(SunGraphics2D sg,
                                   Region clipRegion,
                                   SurfaceData srcData,
                                   SurfaceData dstData,
                                   SurfaceType srcType,
                                   SurfaceType dstType,
                                   int sx1, int sy1,
                                   int sx2, int sy2,
                                   double dx1, double dy1,
                                   double dx2, double dy2)
{
    CompositeType comp = sg.imageComp;
    if (CompositeType.SrcOverNoEa.equals(comp) &&
        (srcData.getTransparency() == Transparency.OPAQUE))
    {
        comp = CompositeType.SrcNoEa;
    }

    ScaledBlit blit = ScaledBlit.getFromCache(srcType, comp, dstType);
    if (blit != null) {
        blit.Scale(srcData, dstData, sg.composite, clipRegion,
                   sx1, sy1, sx2, sy2, dx1, dy1, dx2, dy2);
        return true;
    }
    return false;
}
 

void copyArea(SunGraphics2D sg2d,
              int x, int y, int w, int h, int dx, int dy)
{
    rq.lock();
    try {
        int ctxflags =
            sg2d.surfaceData.getTransparency() == Transparency.OPAQUE ?
                D3DContext.SRC_IS_OPAQUE : D3DContext.NO_CONTEXT_FLAGS;
        D3DSurfaceData dstData;
        try {
            dstData = (D3DSurfaceData)sg2d.surfaceData;
        } catch (ClassCastException e) {
            throw new InvalidPipeException("wrong surface data type: " + sg2d.surfaceData);
        }
        D3DContext.validateContext(dstData, dstData,
                                   sg2d.getCompClip(), sg2d.composite,
                                   null, null, null, ctxflags);

        rq.ensureCapacity(28);
        buf.putInt(COPY_AREA);
        buf.putInt(x).putInt(y).putInt(w).putInt(h);
        buf.putInt(dx).putInt(dy);
    } finally {
        rq.unlock();
    }
}
 

/**
 * Returns the custom buffered image, which mostly identical to
 * BufferedImage.(w,h,TYPE_3BYTE_BGR), but uses the bigger scanlineStride.
 * This means that the raster will have gaps, between the rows.
 */
private static BufferedImage makeCustomManagedBI() {
    int w = 511, h = 255;
    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
    int[] nBits = {8, 8, 8};
    int[] bOffs = {2, 1, 0};
    ColorModel colorModel = new ComponentColorModel(cs, nBits, false, false,
                                                    Transparency.OPAQUE,
                                                    DataBuffer.TYPE_BYTE);
    WritableRaster raster =
            Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, w, h,
                                           w * 3 + 2, 3, bOffs, null);
    BufferedImage bi = new BufferedImage(colorModel, raster, true, null);
    SunWritableRaster.makeTrackable(raster.getDataBuffer());
    SunWritableRaster.markDirty(bi);
    return bi;
}
 

public WGLVolatileSurfaceManager(SunVolatileImage vImg, Object context) {
    super(vImg, context);

    /*
     * We will attempt to accelerate this image only under the
     * following conditions:
     *   - the image is opaque OR
     *   - the image is translucent AND
     *       - the GraphicsConfig supports the FBO extension OR
     *       - the GraphicsConfig has a stored alpha channel
     */
    int transparency = vImg.getTransparency();
    WGLGraphicsConfig gc = (WGLGraphicsConfig)vImg.getGraphicsConfig();
    accelerationEnabled =
        (transparency == Transparency.OPAQUE) ||
        ((transparency == Transparency.TRANSLUCENT) &&
         (gc.isCapPresent(CAPS_EXT_FBOBJECT) ||
          gc.isCapPresent(CAPS_STORED_ALPHA)));
}
 

/**
 * @param buf
 * @return DataImage
 */
protected DataImage get32PlaneImage(MemBuffer buf) {
	// create the color model
	ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
	int[] nBits = { 8, 8, 8, 8 };
	int[] bOffs = { 0, 1, 2, 3 };
	ColorModel colorModel =
		new ComponentColorModel(cs, nBits, true, false, Transparency.TRANSLUCENT,
			DataBuffer.TYPE_BYTE);
	int w = getWidth();
	int h = getHeight();
	WritableRaster raster =
		Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, w, h, w * 4, 4, bOffs, null);

	// create the image

	BufferedImage image =
		new BufferedImage(colorModel, raster, colorModel.isAlphaPremultiplied(), null);

	byte[] dbuf = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
	getPixelData(buf, dbuf);
	return new BitmapDataImage(image);
}
 

void copyArea(SunGraphics2D sg2d,
              int x, int y, int w, int h, int dx, int dy)
{
    rq.lock();
    try {
        int ctxflags =
            sg2d.surfaceData.getTransparency() == Transparency.OPAQUE ?
                D3DContext.SRC_IS_OPAQUE : D3DContext.NO_CONTEXT_FLAGS;
        D3DSurfaceData dstData;
        try {
            dstData = (D3DSurfaceData)sg2d.surfaceData;
        } catch (ClassCastException e) {
            throw new InvalidPipeException("wrong surface data type: " + sg2d.surfaceData);
        }
        D3DContext.validateContext(dstData, dstData,
                                   sg2d.getCompClip(), sg2d.composite,
                                   null, null, null, ctxflags);

        rq.ensureCapacity(28);
        buf.putInt(COPY_AREA);
        buf.putInt(x).putInt(y).putInt(w).putInt(h);
        buf.putInt(dx).putInt(dy);
    } finally {
        rq.unlock();
    }
}
 

public D3DVolatileSurfaceManager(SunVolatileImage vImg, Object context) {
    super(vImg, context);

    /*
     * We will attempt to accelerate this image only under the
     * following conditions:
     *   - the image is opaque OR
     *   - the image is translucent AND
     *       - the GraphicsConfig supports the FBO extension OR
     *       - the GraphicsConfig has a stored alpha channel
     */
    int transparency = vImg.getTransparency();
    D3DGraphicsDevice gd = (D3DGraphicsDevice)
        vImg.getGraphicsConfig().getDevice();
    accelerationEnabled =
        (transparency == Transparency.OPAQUE) ||
        (transparency == Transparency.TRANSLUCENT &&
         (gd.isCapPresent(CAPS_RT_PLAIN_ALPHA) ||
          gd.isCapPresent(CAPS_RT_TEXTURE_ALPHA)));
}
 

public GLXVolatileSurfaceManager(SunVolatileImage vImg, Object context) {
    super(vImg, context);

    /*
     * We will attempt to accelerate this image only under the
     * following conditions:
     *   - the image is opaque OR
     *   - the image is translucent AND
     *       - the GraphicsConfig supports the FBO extension OR
     *       - the GraphicsConfig has a stored alpha channel
     */
    int transparency = vImg.getTransparency();
    GLXGraphicsConfig gc = (GLXGraphicsConfig)vImg.getGraphicsConfig();
    accelerationEnabled =
        (transparency == Transparency.OPAQUE) ||
        ((transparency == Transparency.TRANSLUCENT) &&
         (gc.isCapPresent(CAPS_EXT_FBOBJECT) ||
          gc.isCapPresent(CAPS_STORED_ALPHA)));
}
 

public TriStateImageType(Group parent, String nodename, String desc,
                         int transparency)
{
    super(parent, nodename, desc);
    setHorizontal();
    new DrawableImage(this, Transparency.OPAQUE, true);
    new DrawableImage(this, Transparency.BITMASK,
                      (transparency != Transparency.OPAQUE));
    new DrawableImage(this, Transparency.TRANSLUCENT,
                      (transparency == Transparency.TRANSLUCENT));
}
 

private BufferedImage create3ByteImage(int[] nBits, int[] bOffs) {
    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
    ColorModel colorModel =
        new ComponentColorModel(cs, nBits,
                                false, false,
                                Transparency.OPAQUE,
                                DataBuffer.TYPE_BYTE);
    WritableRaster raster =
        Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE,
                                       w, h,
                                       w*3, 3,
                                       bOffs, null);
    return new BufferedImage(colorModel, raster, false, null);
}
 

@Override
public VolatileImage createCompatibleVolatileImage(int width, int height,
                                                   int transparency,
                                                   int type) {
    if (type == FLIP_BACKBUFFER || type == WINDOW || type == UNDEFINED ||
        transparency == Transparency.BITMASK)
    {
        return null;
    }

    if (type == FBOBJECT) {
        if (!isCapPresent(CAPS_EXT_FBOBJECT)) {
            return null;
        }
    } else if (type == PBUFFER) {
        boolean isOpaque = transparency == Transparency.OPAQUE;
        if (!isOpaque && !isCapPresent(CAPS_STORED_ALPHA)) {
            return null;
        }
    }

    SunVolatileImage vi = new AccelTypedVolatileImage(this, width, height,
                                                      transparency, type);
    Surface sd = vi.getDestSurface();
    if (!(sd instanceof AccelSurface) ||
        ((AccelSurface)sd).getType() != type)
    {
        vi.flush();
        vi = null;
    }

    return vi;
}
 

/**
 * Returns the color model associated with this configuration that
 * supports the specified transparency.
 */
public ColorModel getColorModel(int transparency) {
    switch (transparency) {
    case Transparency.OPAQUE:
        return getColorModel();
    case Transparency.BITMASK:
        return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);
    case Transparency.TRANSLUCENT:
        return ColorModel.getRGBdefault();
    default:
        return null;
    }
}
 

/**
 * Creates a new managed image of the given width and height
 * that is associated with the target Component.
 */
public Image createAcceleratedImage(Component target,
                                    int width, int height)
{
    ColorModel model = getColorModel(Transparency.OPAQUE);
    WritableRaster wr =
        model.createCompatibleWritableRaster(width, height);
    return new OffScreenImage(target, model, wr,
                              model.isAlphaPremultiplied());
}
 

/**
 * Returns the color model associated with this configuration that
 * supports the specified transparency.
 */
public ColorModel getColorModel(int transparency) {
    switch (transparency) {
    case Transparency.OPAQUE:
        return getColorModel();
    case Transparency.BITMASK:
        return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);
    case Transparency.TRANSLUCENT:
        return ColorModel.getRGBdefault();
    default:
        return null;
    }
}
 

/**
 * {@inheritDoc}
 *
 * @see sun.java2d.pipe.hw.AccelGraphicsConfig#createCompatibleVolatileImage
 */
@Override
public VolatileImage
    createCompatibleVolatileImage(int width, int height,
                                  int transparency, int type)
{
    if (type == FLIP_BACKBUFFER || type == WINDOW || type == UNDEFINED ||
        transparency == Transparency.BITMASK)
    {
        return null;
    }

    if (type == FBOBJECT) {
        if (!isCapPresent(CAPS_EXT_FBOBJECT)) {
            return null;
        }
    } else if (type == PBUFFER) {
        boolean isOpaque = transparency == Transparency.OPAQUE;
        if (!isOpaque && !isCapPresent(CAPS_STORED_ALPHA)) {
            return null;
        }
    }

    SunVolatileImage vi = new AccelTypedVolatileImage(this, width, height,
                                                      transparency, type);
    Surface sd = vi.getDestSurface();
    if (!(sd instanceof AccelSurface) ||
        ((AccelSurface)sd).getType() != type)
    {
        vi.flush();
        vi = null;
    }

    return vi;
}
 

/**
 * {@inheritDoc}
 *
 * @see sun.java2d.pipe.hw.AccelGraphicsConfig#createCompatibleVolatileImage
 */
@Override
public VolatileImage
    createCompatibleVolatileImage(int width, int height,
                                  int transparency, int type)
{
    if (type == FLIP_BACKBUFFER || type == WINDOW || type == UNDEFINED ||
        transparency == Transparency.BITMASK)
    {
        return null;
    }

    if (type == FBOBJECT) {
        if (!isCapPresent(CAPS_EXT_FBOBJECT)) {
            return null;
        }
    } else if (type == PBUFFER) {
        boolean isOpaque = transparency == Transparency.OPAQUE;
        if (!isOpaque && !isCapPresent(CAPS_STORED_ALPHA)) {
            return null;
        }
    }

    SunVolatileImage vi = new AccelTypedVolatileImage(this, width, height,
                                                      transparency, type);
    Surface sd = vi.getDestSurface();
    if (!(sd instanceof AccelSurface) ||
        ((AccelSurface)sd).getType() != type)
    {
        vi.flush();
        vi = null;
    }

    return vi;
}
 

/**
 * Returns the color model associated with this configuration that
 * supports the specified transparency.
 */
public ColorModel getColorModel(int transparency) {
    switch (transparency) {
    case Transparency.OPAQUE:
        return getColorModel();
    case Transparency.BITMASK:
        return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);
    case Transparency.TRANSLUCENT:
        return ColorModel.getRGBdefault();
    default:
        return null;
    }
}
 

/**
 * Returns the custom buffered image, which mostly identical to
 * BufferedImage.(w,h,TYPE_3BYTE_BGR), but uses the bigger scanlineStride.
 * This means that the raster will have gaps, between the rows.
 */
private static BufferedImage makeCustomUnmanagedBI() {
    int w = 511, h = 255;
    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
    int[] nBits = {8, 8, 8};
    int[] bOffs = {2, 1, 0};
    ColorModel colorModel = new ComponentColorModel(cs, nBits, false, false,
                                                    Transparency.OPAQUE,
                                                    DataBuffer.TYPE_BYTE);
    WritableRaster raster =
            Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, w, h,
                                           w * 3 + 2, 3, bOffs, null);
    return new BufferedImage(colorModel, raster, true, null);
}
 

public static void main(String args[]) {
    BufferedImage src
        = new BufferedImage(1, 10, BufferedImage.TYPE_INT_ARGB);

    // Set src pixel values
    Color pelColor = new Color(100, 100, 100, 128);
    for (int i = 0; i < 10; i++) {
        src.setRGB(0, i, pelColor.getRGB());
    }

    ColorModel cm = new ComponentColorModel
        (ColorSpace.getInstance(ColorSpace.CS_GRAY),
         new int [] {8,8}, true,
         src.getColorModel().isAlphaPremultiplied(),
         Transparency.TRANSLUCENT,
         DataBuffer.TYPE_BYTE);

    SampleModel sm = new PixelInterleavedSampleModel
        (DataBuffer.TYPE_BYTE, 100, 100, 2, 200,
         new int [] { 0, 1 });

    WritableRaster wr = Raster.createWritableRaster(sm, new Point(0,0));

    BufferedImage dst =
        new BufferedImage(cm, wr, cm.isAlphaPremultiplied(), null);
    dst = dst.getSubimage(0, 0, 1, 10);

    ColorConvertOp op = new ColorConvertOp(null);

    op.filter(src, dst);

    for (int i = 0; i < 10; i++) {
        if (((dst.getRGB(0, i) >> 24) & 0xff) != 128) {
            throw new RuntimeException(
                "Incorrect destination alpha value.");
        }
    }

}
 

static Image getBMImage(GraphicsConfiguration gc,
                        int w, int h)
{
    Image image =
        gc.createCompatibleImage(w, h, Transparency.BITMASK);
    initImage(gc, image);
    return image;
}
 

public static ComponentColorModel createABGRCCM() {
    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
    int[] nBits = {8, 8, 8, 8};
    int[] bOffs = {3, 2, 1, 0};
    return new ComponentColorModel(cs, nBits, true, true,
                                   Transparency.TRANSLUCENT,
                                   DataBuffer.TYPE_BYTE);
}
 

static VolatileImage getVImage(GraphicsConfiguration gc,
                               int w, int h)
{
    VolatileImage image =
        gc.createCompatibleVolatileImage(w, h, Transparency.OPAQUE);
    image.validate(gc);
    initImage(gc, image);
    return image;
}
 

protected SunVolatileImage(Component comp,
                           GraphicsConfiguration graphicsConfig,
                           int width, int height, Object context,
                           int transparency, ImageCapabilities caps,
                           int accType)
{
    this.comp = comp;
    this.graphicsConfig = graphicsConfig;
    if (width <= 0 || height <= 0) {
        throw new IllegalArgumentException("Width (" + width + ")" +
                          " and height (" + height + ") cannot be <= 0");
    }
    this.width = width;
    this.height = height;
    this.forcedAccelSurfaceType = accType;
    if (!(transparency == Transparency.OPAQUE ||
        transparency == Transparency.BITMASK ||
        transparency == Transparency.TRANSLUCENT))
    {
        throw new IllegalArgumentException("Unknown transparency type:" +
                                           transparency);
    }
    this.transparency = transparency;
    this.volSurfaceManager = createSurfaceManager(context, caps);
    SurfaceManager.setManager(this, volSurfaceManager);

    // post-construction initialization of the surface manager
    volSurfaceManager.initialize();
    // clear the background
    volSurfaceManager.initContents();
}