More general version of image filtering; reworked to be robust and easier to SSE

gyp/gmslides.gypi

 # include this gypi to include all the golden master slides.
 {
   'sources': [
     '../gm/aaclip.cpp',
     '../gm/aarectmodes.cpp',
     '../gm/alphagradients.cpp',
     '../gm/arithmode.cpp',
     '../gm/bicubicfilter.cpp',
     '../gm/bigmatrix.cpp',
     '../gm/bigtext.cpp',
@@ skipping 70 matching lines @@
     '../gm/pathreverse.cpp',
     '../gm/perlinnoise.cpp',
     '../gm/points.cpp',
     '../gm/poly2poly.cpp',
     '../gm/quadpaths.cpp',
     '../gm/rects.cpp',
     '../gm/rrect.cpp',
     '../gm/rrects.cpp',
     '../gm/roundrects.cpp',
     '../gm/samplerstress.cpp',
+    # '../gm/scalebitmap.cpp',
     '../gm/shaderbounds.cpp',
     '../gm/selftest.cpp',
     '../gm/shadertext.cpp',
     '../gm/shadertext2.cpp',
     '../gm/shadertext3.cpp',
     '../gm/shadows.cpp',
     '../gm/shallowgradient.cpp',
     '../gm/simpleaaclip.cpp',
     '../gm/spritebitmap.cpp',
     '../gm/srcmode.cpp',
@@ skipping 18 matching lines @@
     '../gm/xfermodes.cpp',
     '../gm/xfermodes2.cpp',
   ],
 }
 
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