Java Code Examples for java.awt.image.AffineTransformOp#TYPE_NEAREST_NEIGHBOR

public static boolean isSimpleTranslate(SunGraphics2D sg) {
    int ts = sg.transformState;
    if (ts <= SunGraphics2D.TRANSFORM_INT_TRANSLATE) {
        // Integer translates are always "simple"
        return true;
    }
    if (ts >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) {
        // Scales and beyond are always "not simple"
        return false;
    }
    // non-integer translates are only simple when not interpolating
    if (sg.interpolationType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR) {
        return true;
    }
    return false;
}
 

public static boolean isSimpleTranslate(SunGraphics2D sg) {
    int ts = sg.transformState;
    if (ts <= SunGraphics2D.TRANSFORM_INT_TRANSLATE) {
        // Integer translates are always "simple"
        return true;
    }
    if (ts >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) {
        // Scales and beyond are always "not simple"
        return false;
    }
    // non-integer translates are only simple when not interpolating
    if (sg.interpolationType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR) {
        return true;
    }
    return false;
}
 

public static boolean isSimpleTranslate(SunGraphics2D sg) {
    int ts = sg.transformState;
    if (ts <= SunGraphics2D.TRANSFORM_INT_TRANSLATE) {
        // Integer translates are always "simple"
        return true;
    }
    if (ts >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) {
        // Scales and beyond are always "not simple"
        return false;
    }
    // non-integer translates are only simple when not interpolating
    if (sg.interpolationType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR) {
        return true;
    }
    return false;
}
 

public static void rotateImage(File result) {
	try {
		BufferedImage image;
		try (FileInputStream fis = new FileInputStream(result)) {
			image = ImageIO.read(fis);
		}
		AffineTransform tx = AffineTransform.getScaleInstance(-1, -1);
		tx.translate(-image.getWidth(null), -image.getHeight(null));
		AffineTransformOp op = new AffineTransformOp(tx, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
		image = op.filter(image, null);
		try (FileOutputStream fos = new FileOutputStream(result)) {
			ImageIO.write(image, "jpg", fos);
		}
	} catch (Exception e) {
		LOG.error("unable to rotate image", e);
	}
}
 

public static boolean isSimpleTranslate(SunGraphics2D sg) {
    int ts = sg.transformState;
    if (ts <= SunGraphics2D.TRANSFORM_INT_TRANSLATE) {
        // Integer translates are always "simple"
        return true;
    }
    if (ts >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) {
        // Scales and beyond are always "not simple"
        return false;
    }
    // non-integer translates are only simple when not interpolating
    if (sg.interpolationType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR) {
        return true;
    }
    return false;
}
 

/**
 * Sets the preferences for the rendering algorithms.
 * Hint categories include controls for rendering quality and
 * overall time/quality trade-off in the rendering process.
 * @param hints The rendering hints to be set
 * @see RenderingHints
 */
public void setRenderingHints(Map<?,?> hints) {
    this.hints = null;
    renderHint = SunHints.INTVAL_RENDER_DEFAULT;
    antialiasHint = SunHints.INTVAL_ANTIALIAS_OFF;
    textAntialiasHint = SunHints.INTVAL_TEXT_ANTIALIAS_DEFAULT;
    fractionalMetricsHint = SunHints.INTVAL_FRACTIONALMETRICS_OFF;
    lcdTextContrast = lcdTextContrastDefaultValue;
    interpolationHint = -1;
    interpolationType = AffineTransformOp.TYPE_NEAREST_NEIGHBOR;
    boolean customHintPresent = false;
    Iterator<?> iter = hints.keySet().iterator();
    while (iter.hasNext()) {
        Object key = iter.next();
        if (key == SunHints.KEY_RENDERING ||
            key == SunHints.KEY_ANTIALIASING ||
            key == SunHints.KEY_TEXT_ANTIALIASING ||
            key == SunHints.KEY_FRACTIONALMETRICS ||
            key == SunHints.KEY_TEXT_ANTIALIAS_LCD_CONTRAST ||
            key == SunHints.KEY_STROKE_CONTROL ||
            key == SunHints.KEY_INTERPOLATION)
        {
            setRenderingHint((Key) key, hints.get(key));
        } else {
            customHintPresent = true;
        }
    }
    if (customHintPresent) {
        this.hints = makeHints(hints);
    }
    invalidatePipe();
}
 

/**
 * Sets the preferences for the rendering algorithms.
 * Hint categories include controls for rendering quality and
 * overall time/quality trade-off in the rendering process.
 * @param hints The rendering hints to be set
 * @see RenderingHints
 */
public void setRenderingHints(Map<?,?> hints) {
    this.hints = null;
    renderHint = SunHints.INTVAL_RENDER_DEFAULT;
    antialiasHint = SunHints.INTVAL_ANTIALIAS_OFF;
    textAntialiasHint = SunHints.INTVAL_TEXT_ANTIALIAS_DEFAULT;
    fractionalMetricsHint = SunHints.INTVAL_FRACTIONALMETRICS_OFF;
    lcdTextContrast = lcdTextContrastDefaultValue;
    interpolationHint = -1;
    interpolationType = AffineTransformOp.TYPE_NEAREST_NEIGHBOR;
    boolean customHintPresent = false;
    Iterator<?> iter = hints.keySet().iterator();
    while (iter.hasNext()) {
        Object key = iter.next();
        if (key == SunHints.KEY_RENDERING ||
            key == SunHints.KEY_ANTIALIASING ||
            key == SunHints.KEY_TEXT_ANTIALIASING ||
            key == SunHints.KEY_FRACTIONALMETRICS ||
            key == SunHints.KEY_TEXT_ANTIALIAS_LCD_CONTRAST ||
            key == SunHints.KEY_STROKE_CONTROL ||
            key == SunHints.KEY_INTERPOLATION)
        {
            setRenderingHint((Key) key, hints.get(key));
        } else {
            customHintPresent = true;
        }
    }
    if (customHintPresent) {
        this.hints = makeHints(hints);
    }
    invalidatePipe();
}
 

/** Returns a mask with the same image, resized to (w,h). */
public ImageFieldMask scaleTo(Dimension size) {
  int w = size.width;
  int h = size.height;
  BufferedImage grayImage = this.image;
  BufferedImage scaledImage = new BufferedImage(w, h, BufferedImage.TYPE_BYTE_GRAY);
  AffineTransform at = new AffineTransform();
  at.scale(((double)w) / grayImage.getWidth(), ((double) h) / grayImage.getHeight());
  AffineTransformOp scaleOp = new AffineTransformOp(at, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
  scaleOp.filter(grayImage, scaledImage);
  return new ImageFieldMask(scaledImage);
}
 

/**
 * Sets the preferences for the rendering algorithms.
 * Hint categories include controls for rendering quality and
 * overall time/quality trade-off in the rendering process.
 * @param hints The rendering hints to be set
 * @see RenderingHints
 */
public void setRenderingHints(Map<?,?> hints) {
    this.hints = null;
    renderHint = SunHints.INTVAL_RENDER_DEFAULT;
    antialiasHint = SunHints.INTVAL_ANTIALIAS_OFF;
    textAntialiasHint = SunHints.INTVAL_TEXT_ANTIALIAS_DEFAULT;
    fractionalMetricsHint = SunHints.INTVAL_FRACTIONALMETRICS_OFF;
    lcdTextContrast = lcdTextContrastDefaultValue;
    interpolationHint = -1;
    interpolationType = AffineTransformOp.TYPE_NEAREST_NEIGHBOR;
    boolean customHintPresent = false;
    Iterator<?> iter = hints.keySet().iterator();
    while (iter.hasNext()) {
        Object key = iter.next();
        if (key == SunHints.KEY_RENDERING ||
            key == SunHints.KEY_ANTIALIASING ||
            key == SunHints.KEY_TEXT_ANTIALIASING ||
            key == SunHints.KEY_FRACTIONALMETRICS ||
            key == SunHints.KEY_TEXT_ANTIALIAS_LCD_CONTRAST ||
            key == SunHints.KEY_STROKE_CONTROL ||
            key == SunHints.KEY_INTERPOLATION)
        {
            setRenderingHint((Key) key, hints.get(key));
        } else {
            customHintPresent = true;
        }
    }
    if (customHintPresent) {
        this.hints = makeHints(hints);
    }
    invalidatePipe();
}
 

public SunGraphics2D(SurfaceData sd, Color fg, Color bg, Font f) {
    surfaceData = sd;
    foregroundColor = fg;
    backgroundColor = bg;

    transform = new AffineTransform();
    stroke = defaultStroke;
    composite = defaultComposite;
    paint = foregroundColor;

    imageComp = CompositeType.SrcOverNoEa;

    renderHint = SunHints.INTVAL_RENDER_DEFAULT;
    antialiasHint = SunHints.INTVAL_ANTIALIAS_OFF;
    textAntialiasHint = SunHints.INTVAL_TEXT_ANTIALIAS_DEFAULT;
    fractionalMetricsHint = SunHints.INTVAL_FRACTIONALMETRICS_OFF;
    lcdTextContrast = lcdTextContrastDefaultValue;
    interpolationHint = -1;
    strokeHint = SunHints.INTVAL_STROKE_DEFAULT;
    resolutionVariantHint = SunHints.INTVAL_RESOLUTION_VARIANT_DEFAULT;

    interpolationType = AffineTransformOp.TYPE_NEAREST_NEIGHBOR;

    validateColor();

    devScale = sd.getDefaultScale();
    if (devScale != 1) {
        transform.setToScale(devScale, devScale);
        invalidateTransform();
    }

    font = f;
    if (font == null) {
        font = defaultFont;
    }

    setDevClip(sd.getBounds());
    invalidatePipe();
}
 

public SunGraphics2D(SurfaceData sd, Color fg, Color bg, Font f) {
    surfaceData = sd;
    foregroundColor = fg;
    backgroundColor = bg;

    transform = new AffineTransform();
    stroke = defaultStroke;
    composite = defaultComposite;
    paint = foregroundColor;

    imageComp = CompositeType.SrcOverNoEa;

    renderHint = SunHints.INTVAL_RENDER_DEFAULT;
    antialiasHint = SunHints.INTVAL_ANTIALIAS_OFF;
    textAntialiasHint = SunHints.INTVAL_TEXT_ANTIALIAS_DEFAULT;
    fractionalMetricsHint = SunHints.INTVAL_FRACTIONALMETRICS_OFF;
    lcdTextContrast = lcdTextContrastDefaultValue;
    interpolationHint = -1;
    strokeHint = SunHints.INTVAL_STROKE_DEFAULT;

    interpolationType = AffineTransformOp.TYPE_NEAREST_NEIGHBOR;

    validateColor();

    devScale = sd.getDefaultScale();
    if (devScale != 1) {
        transform.setToScale(devScale, devScale);
        invalidateTransform();
    }

    font = f;
    if (font == null) {
        font = defaultFont;
    }

    setDevClip(sd.getBounds());
    invalidatePipe();
}
 

/**
 * Sets the preferences for the rendering algorithms.
 * Hint categories include controls for rendering quality and
 * overall time/quality trade-off in the rendering process.
 * @param hints The rendering hints to be set
 * @see RenderingHints
 */
public void setRenderingHints(Map<?,?> hints) {
    this.hints = null;
    renderHint = SunHints.INTVAL_RENDER_DEFAULT;
    antialiasHint = SunHints.INTVAL_ANTIALIAS_OFF;
    textAntialiasHint = SunHints.INTVAL_TEXT_ANTIALIAS_DEFAULT;
    fractionalMetricsHint = SunHints.INTVAL_FRACTIONALMETRICS_OFF;
    lcdTextContrast = lcdTextContrastDefaultValue;
    interpolationHint = -1;
    interpolationType = AffineTransformOp.TYPE_NEAREST_NEIGHBOR;
    boolean customHintPresent = false;
    Iterator<?> iter = hints.keySet().iterator();
    while (iter.hasNext()) {
        Object key = iter.next();
        if (key == SunHints.KEY_RENDERING ||
            key == SunHints.KEY_ANTIALIASING ||
            key == SunHints.KEY_TEXT_ANTIALIASING ||
            key == SunHints.KEY_FRACTIONALMETRICS ||
            key == SunHints.KEY_TEXT_ANTIALIAS_LCD_CONTRAST ||
            key == SunHints.KEY_STROKE_CONTROL ||
            key == SunHints.KEY_INTERPOLATION)
        {
            setRenderingHint((Key) key, hints.get(key));
        } else {
            customHintPresent = true;
        }
    }
    if (customHintPresent) {
        this.hints = makeHints(hints);
    }
    invalidatePipe();
}
 

private BufferedImage flipHorizontally(BufferedImage imgIn) {
	AffineTransform tx = AffineTransform.getScaleInstance(-1, 1);
	tx.translate(-imgIn.getWidth(null), 0);
	AffineTransformOp op = new AffineTransformOp(tx, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
	imgIn = op.filter(imgIn, null);        
       return imgIn;
}
 

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    BufferedImage img = new BufferedImage(1, 40000, BufferedImage.TYPE_INT_RGB);
    AffineTransformOp flipAtop = new AffineTransformOp(AffineTransform.getScaleInstance(1, 1),
            AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
    flipAtop.filter(img, null);
}
 

@Override
protected void renderImageXform(SunGraphics2D sg, Image img,
                                AffineTransform tx, int interpType,
                                int sx1, int sy1, int sx2, int sy2,
                                Color bgColor)
{
    // punt to the MediaLib-based transformImage() in the superclass if:
    //     - bicubic interpolation is specified
    //     - a background color is specified and will be used
    //     - the source surface is neither a texture nor render-to-texture
    //       surface, and a non-default interpolation hint is specified
    //       (we can only control the filtering for texture->surface
    //       copies)
    //         REMIND: we should tweak the sw->texture->surface
    //         transform case to handle filtering appropriately
    //         (see 4841762)...
    //     - an appropriate TransformBlit primitive could not be found
    if (interpType != AffineTransformOp.TYPE_BICUBIC) {
        SurfaceData dstData = sg.surfaceData;
        SurfaceData srcData =
            dstData.getSourceSurfaceData(img,
                                         SunGraphics2D.TRANSFORM_GENERIC,
                                         sg.imageComp,
                                         bgColor);

        if (srcData != null &&
            !isBgOperation(srcData, bgColor) &&
            (srcData.getSurfaceType() == OGLSurfaceData.OpenGLTexture ||
             srcData.getSurfaceType() == OGLSurfaceData.OpenGLSurfaceRTT ||
             interpType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR))
        {
            SurfaceType srcType = srcData.getSurfaceType();
            SurfaceType dstType = dstData.getSurfaceType();
            TransformBlit blit = TransformBlit.getFromCache(srcType,
                                                            sg.imageComp,
                                                            dstType);

            if (blit != null) {
                blit.Transform(srcData, dstData,
                               sg.composite, sg.getCompClip(),
                               tx, interpType,
                               sx1, sy1, 0, 0, sx2-sx1, sy2-sy1);
                return;
            }
        }
    }

    super.renderImageXform(sg, img, tx, interpType,
                           sx1, sy1, sx2, sy2, bgColor);
}
 

/**
 * We use OpenGL's texture coordinate generator to automatically
 * map the TexturePaint image to the geometry being rendered.  The
 * generator uses two separate plane equations that take the (x,y)
 * location (in device space) of the fragment being rendered to
 * calculate (u,v) texture coordinates for that fragment:
 *     u = Ax + By + Cz + Dw
 *     v = Ex + Fy + Gz + Hw
 *
 * Since we use a 2D orthographic projection, we can assume that z=0
 * and w=1 for any fragment.  So we need to calculate appropriate
 * values for the plane equation constants (A,B,D) and (E,F,H) such
 * that {u,v}=0 for the top-left of the TexturePaint's anchor
 * rectangle and {u,v}=1 for the bottom-right of the anchor rectangle.
 * We can easily make the texture image repeat for {u,v} values
 * outside the range [0,1] by specifying the GL_REPEAT texture wrap
 * mode.
 *
 * Calculating the plane equation constants is surprisingly simple.
 * We can think of it as an inverse matrix operation that takes
 * device space coordinates and transforms them into user space
 * coordinates that correspond to a location relative to the anchor
 * rectangle.  First, we translate and scale the current user space
 * transform by applying the anchor rectangle bounds.  We then take
 * the inverse of this affine transform.  The rows of the resulting
 * inverse matrix correlate nicely to the plane equation constants
 * we were seeking.
 */
private static void setTexturePaint(RenderQueue rq,
                                    SunGraphics2D sg2d,
                                    TexturePaint paint,
                                    boolean useMask)
{
    BufferedImage bi = paint.getImage();
    SurfaceData dstData = sg2d.surfaceData;
    SurfaceData srcData =
        dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT,
                                     CompositeType.SrcOver, null);
    boolean filter =
        (sg2d.interpolationType !=
         AffineTransformOp.TYPE_NEAREST_NEIGHBOR);

    // calculate plane equation constants
    AffineTransform at = (AffineTransform)sg2d.transform.clone();
    Rectangle2D anchor = paint.getAnchorRect();
    at.translate(anchor.getX(), anchor.getY());
    at.scale(anchor.getWidth(), anchor.getHeight());

    double xp0, xp1, xp3, yp0, yp1, yp3;
    try {
        at.invert();
        xp0 = at.getScaleX();
        xp1 = at.getShearX();
        xp3 = at.getTranslateX();
        yp0 = at.getShearY();
        yp1 = at.getScaleY();
        yp3 = at.getTranslateY();
    } catch (java.awt.geom.NoninvertibleTransformException e) {
        xp0 = xp1 = xp3 = yp0 = yp1 = yp3 = 0.0;
    }

    // assert rq.lock.isHeldByCurrentThread();
    rq.ensureCapacityAndAlignment(68, 12);
    RenderBuffer buf = rq.getBuffer();
    buf.putInt(SET_TEXTURE_PAINT);
    buf.putInt(useMask ? 1 : 0);
    buf.putInt(filter ? 1 : 0);
    buf.putLong(srcData.getNativeOps());
    buf.putDouble(xp0).putDouble(xp1).putDouble(xp3);
    buf.putDouble(yp0).putDouble(yp1).putDouble(yp3);
}
 

protected boolean tryCopyOrScale(SunGraphics2D sg,
                                 Image img,
                                 int sx1, int sy1,
                                 int sx2, int sy2,
                                 Color bgColor, int interpType,
                                 double coords[])
{
    double dx1 = coords[0];
    double dy1 = coords[1];
    double dx2 = coords[2];
    double dy2 = coords[3];
    double dw = dx2 - dx1;
    double dh = dy2 - dy1;

    /* If any of the destination coordinates exceed the integer range,
     * then the calculations performed in calls made here cannot be
     * guaranteed to be correct, or to converge (terminate).
     * So return out of here, deferring to code that can handle this.
     */
    if (dx1 < Integer.MIN_VALUE || dx1 > Integer.MAX_VALUE ||
        dy1 < Integer.MIN_VALUE || dy1 > Integer.MAX_VALUE ||
        dx2 < Integer.MIN_VALUE || dx2 > Integer.MAX_VALUE ||
        dy2 < Integer.MIN_VALUE || dy2 > Integer.MAX_VALUE)
    {
        return false;
    }

    // First check if width and height are very close to img w&h.
    if (closeToInteger(sx2-sx1, dw) && closeToInteger(sy2-sy1, dh)) {
        // Round location to nearest pixel and then test
        // if it will cause interpolation anomalies.
        int idx = (int) Math.floor(dx1 + 0.5);
        int idy = (int) Math.floor(dy1 + 0.5);
        if (interpType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR ||
            (closeToInteger(idx, dx1) && closeToInteger(idy, dy1)))
        {
            renderImageCopy(sg, img, bgColor,
                            idx, idy,
                            sx1, sy1, sx2-sx1, sy2-sy1);
            return true;
        }
    }
    // (For now) We can only use our ScaledBlits if the image
    // is upright (i.e. dw & dh both > 0)
    if (dw > 0 && dh > 0) {
        if (renderImageScale(sg, img, bgColor, interpType,
                             sx1, sy1, sx2, sy2,
                             dx1, dy1, dx2, dy2))
        {
            return true;
        }
    }
    return false;
}
 

@Override
protected void renderImageXform(SunGraphics2D sg, Image img,
                                AffineTransform tx, int interpType,
                                int sx1, int sy1, int sx2, int sy2,
                                Color bgColor)
{
    // punt to the MediaLib-based transformImage() in the superclass if:
    //     - bicubic interpolation is specified
    //     - a background color is specified and will be used
    //     - the source surface is neither a texture nor render-to-texture
    //       surface, and a non-default interpolation hint is specified
    //       (we can only control the filtering for texture->surface
    //       copies)
    //         REMIND: we should tweak the sw->texture->surface
    //         transform case to handle filtering appropriately
    //         (see 4841762)...
    //     - an appropriate TransformBlit primitive could not be found
    if (interpType != AffineTransformOp.TYPE_BICUBIC) {
        SurfaceData dstData = sg.surfaceData;
        SurfaceData srcData =
            dstData.getSourceSurfaceData(img,
                                         SunGraphics2D.TRANSFORM_GENERIC,
                                         sg.imageComp,
                                         bgColor);

        if (srcData != null &&
            !isBgOperation(srcData, bgColor) &&
            (srcData.getSurfaceType() == OGLSurfaceData.OpenGLTexture ||
             srcData.getSurfaceType() == OGLSurfaceData.OpenGLSurfaceRTT ||
             interpType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR))
        {
            SurfaceType srcType = srcData.getSurfaceType();
            SurfaceType dstType = dstData.getSurfaceType();
            TransformBlit blit = TransformBlit.getFromCache(srcType,
                                                            sg.imageComp,
                                                            dstType);

            if (blit != null) {
                blit.Transform(srcData, dstData,
                               sg.composite, sg.getCompClip(),
                               tx, interpType,
                               sx1, sy1, 0, 0, sx2-sx1, sy2-sy1);
                return;
            }
        }
    }

    super.renderImageXform(sg, img, tx, interpType,
                           sx1, sy1, sx2, sy2, bgColor);
}
 

/**
 * Applies an affine transform in place.
 */
private BufferedImage affineTransform(AffineTransform tx) {
   AffineTransformOp op = new AffineTransformOp(tx, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
   return op.filter(awt(), null);
}
 

protected boolean tryCopyOrScale(SunGraphics2D sg,
                                 Image img,
                                 int sx1, int sy1,
                                 int sx2, int sy2,
                                 Color bgColor, int interpType,
                                 double coords[])
{
    double dx1 = coords[0];
    double dy1 = coords[1];
    double dx2 = coords[2];
    double dy2 = coords[3];
    double dw = dx2 - dx1;
    double dh = dy2 - dy1;

    /* If any of the destination coordinates exceed the integer range,
     * then the calculations performed in calls made here cannot be
     * guaranteed to be correct, or to converge (terminate).
     * So return out of here, deferring to code that can handle this.
     */
    if (dx1 < Integer.MIN_VALUE || dx1 > Integer.MAX_VALUE ||
        dy1 < Integer.MIN_VALUE || dy1 > Integer.MAX_VALUE ||
        dx2 < Integer.MIN_VALUE || dx2 > Integer.MAX_VALUE ||
        dy2 < Integer.MIN_VALUE || dy2 > Integer.MAX_VALUE)
    {
        return false;
    }

    // First check if width and height are very close to img w&h.
    if (closeToInteger(sx2-sx1, dw) && closeToInteger(sy2-sy1, dh)) {
        // Round location to nearest pixel and then test
        // if it will cause interpolation anomalies.
        int idx = (int) Math.floor(dx1 + 0.5);
        int idy = (int) Math.floor(dy1 + 0.5);
        if (interpType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR ||
            (closeToInteger(idx, dx1) && closeToInteger(idy, dy1)))
        {
            renderImageCopy(sg, img, bgColor,
                            idx, idy,
                            sx1, sy1, sx2-sx1, sy2-sy1);
            return true;
        }
    }
    // (For now) We can only use our ScaledBlits if the image
    // is upright (i.e. dw & dh both > 0)
    if (dw > 0 && dh > 0) {
        if (renderImageScale(sg, img, bgColor, interpType,
                             sx1, sy1, sx2, sy2,
                             dx1, dy1, dx2, dy2))
        {
            return true;
        }
    }
    return false;
}