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 XRCompositeTraps(int dst, int srcX, int srcY, TrapezoidList trapList) {
int renderReferenceX = 0;
int renderReferenceY = 0;
if (trapList.getP1YLeft(0) < trapList.getP2YLeft(0)) {
renderReferenceX = trapList.getP1XLeft(0);
renderReferenceY = trapList.getP1YLeft(0);
} else {
renderReferenceX = trapList.getP2XLeft(0);
renderReferenceY = trapList.getP2YLeft(0);
}
renderReferenceX = (int) Math.floor(XRUtils.XFixedToDouble(renderReferenceX));
renderReferenceY = (int) Math.floor(XRUtils.XFixedToDouble(renderReferenceY));
con.renderCompositeTrapezoids(
compRule,
src.picture,
XRUtils.PictStandardA8,
dst,
renderReferenceX,
renderReferenceY,
trapList);
}