allows the client more control over the scaling. Because of virtual overrides
and wanting to keep the old call-sites up and running, this CL renames the
virtual entry-point to drawBitmapRectToRect, and downgrades drawBitmapRect to
a non-virtual helper function.
The implementation is to use the float-rect for computing the matrix, but still
cons-up an integer rect for the purposes of subsetting the original bitmap. We
do this by calling float_src->roundOut(&int_src) so that we include all
(partially) covered src pixels.
No change needed on SkDevice, since that signature is explicitly passed the
computed matrix.
Review URL: https://codereview.appspot.com/6501140
git-svn-id: http://skia.googlecode.com/svn/trunk@5578 2bbb7eff-a529-9590-31e7-b0007b416f81
