private void setComposite(Composite comp) {
if (comp instanceof AlphaComposite) {
AlphaComposite aComp = (AlphaComposite) comp;
validatedExtraAlpha = aComp.getAlpha();
this.compRule = XRUtils.j2dAlphaCompToXR(aComp.getRule());
this.extraAlpha = validatedExtraAlpha;
if (extraAlpha == 1.0f) {
alphaMask = XRUtils.None;
alphaColor.alpha = XRColor.FULL_ALPHA.alpha;
} else {
alphaColor.alpha = XRColor.byteToXRColorValue((int) (extraAlpha * 255));
alphaMask = alphaMaskPict;
con.renderRectangle(alphaMaskPict, XRUtils.PictOpSrc, alphaColor, 0, 0, 1, 1);
}
xorEnabled = false;
} else if (comp instanceof XORComposite) {
/* XOR composite validation is handled in XRSurfaceData */
xorEnabled = true;
} else {
throw new InternalError(
"Composite accaleration not implemented for: " + comp.getClass().getName());
}
}
public void validateCompositeState(
Composite comp, AffineTransform xform, Paint paint, SunGraphics2D sg2d) {
boolean updatePaint = (paint != validatedPaint) || paint == null;
// validate composite
if ((comp != validatedComp)) {
if (comp != null) {
setComposite(comp);
} else {
comp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER);
setComposite(comp);
}
// the paint state is dependent on the composite state, so make
// sure we update the color below
updatePaint = true;
validatedComp = comp;
}
if (sg2d != null && validatedPixel != sg2d.pixel) {
validatedPixel = sg2d.pixel;
setForeground(validatedPixel);
}
// validate paint
if (updatePaint) {
if (paint != null && sg2d != null && sg2d.paintState >= SunGraphics2D.PAINT_GRADIENT) {
XRPaints.setPaint(sg2d, paint);
} else {
XRResetPaint();
}
validatedPaint = paint;
}
if (src != solidSrcPict) {
AffineTransform at = (AffineTransform) xform.clone();
try {
at.invert();
} catch (NoninvertibleTransformException e) {
at.setToIdentity();
}
src.validateAsSource(at, -1, -1);
}
}