Merge JDK-8220154 initial metal implementation patch to the jdk sandbox branch
Reviewed-by: avu, prr, kcr
Contributed-by: avu(Jetbrains), aghaisas, jdv
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package sun.java2d.metal;
import sun.java2d.SurfaceData;
import sun.java2d.SurfaceDataProxy;
import sun.java2d.loops.CompositeType;
import java.awt.*;
/**
* The proxy class contains the logic for when to replace a
* SurfaceData with a cached OGL Texture and the code to create
* the accelerated surfaces.
*/
public class MTLSurfaceDataProxy extends SurfaceDataProxy {
public static SurfaceDataProxy createProxy(SurfaceData srcData,
MTLGraphicsConfig dstConfig)
{
if (srcData instanceof MTLSurfaceData) {
// srcData must be a VolatileImage which either matches
// our pixel format or not - either way we do not cache it...
return UNCACHED;
}
return new MTLSurfaceDataProxy(dstConfig, srcData.getTransparency());
}
MTLGraphicsConfig oglgc;
int transparency;
public MTLSurfaceDataProxy(MTLGraphicsConfig oglgc, int transparency) {
this.oglgc = oglgc;
this.transparency = transparency;
}
@Override
public SurfaceData validateSurfaceData(SurfaceData srcData,
SurfaceData cachedData,
int w, int h)
{
if (cachedData == null) {
try {
cachedData = oglgc.createManagedSurface(w, h, transparency);
} catch (OutOfMemoryError er) {
return null;
}
}
return cachedData;
}
@Override
public boolean isSupportedOperation(SurfaceData srcData,
int txtype,
CompositeType comp,
Color bgColor)
{
return comp.isDerivedFrom(CompositeType.AnyAlpha) &&
(bgColor == null || transparency == Transparency.OPAQUE);
}
}