Please review this performance enhancement for OpenJFX 10 / Marlin: JBS: https://bugs.openjdk.java.net/browse/JDK-8170024 webrev: http://cr.openjdk.java.net/~lbourges/marlinFX/marlinFX-8170024.0/
The performance impact is small but may be more important for large shapes (left-side is 'empty) but anyway this patch only impacts the SW pipeline. Changes: - added a new method parameter pix_x_off to PiscesRenderer.emitAndClearAlphaRow() giving the offset (in pixels) within the alpha row + bound checks (for consistency) - *modified JPiscesRenderer to alter the initial alpha buffer pointer; the C blit functions seems to support well the 'trick'* *- use the new parameter in SWContext to make MarlinFX only process the alphaRow in the range [pix_from; pix_to[ (as initially made for)* Cheers, Laurent
