package/www/firefox/Skia-menu-fonts.patch

   1 https://bugzilla.mozilla.org/show_bug.cgi?id=1504834#c9
   2 https://bugs.chromium.org/p/skia/issues/detail?id=9781
   3
   4 --- a/gfx/skia/skia/include/private/SkNx.h
   5 +++ b/gfx/skia/skia/include/private/SkNx.h
   6 @@ -238,7 +238,18 @@
   7      AI SkNx operator*(const SkNx& y) const { return fVal * y.fVal; }
   8      AI SkNx operator/(const SkNx& y) const { return fVal / y.fVal; }
   9
  10 +    // On Big endian the commented out variant doesn't work,
  11 +    // and honestly, I have no idea why it exists in the first place.
  12 +    // The reason its broken is, I think, that it defaults to the double-variant of ToBits()
  13 +    // which gets a 64-bit integer, and FromBits returns 32-bit,
  14 +    // cutting off the wrong half again.
  15 +    // Overall, I see no reason to have ToBits and FromBits at all (even for floats/doubles).
  16 +    // Still we are only "fixing" this for big endian and leave little endian alone (never touch a running system)
  17 +#ifdef SK_CPU_BENDIAN
  18 +    AI SkNx operator&(const SkNx& y) const { return fVal & y.fVal; }
  19 +#else
  20      AI SkNx operator&(const SkNx& y) const { return FromBits(ToBits(fVal) & ToBits(y.fVal)); }
  21 +#endif
  22      AI SkNx operator|(const SkNx& y) const { return FromBits(ToBits(fVal) | ToBits(y.fVal)); }
  23      AI SkNx operator^(const SkNx& y) const { return FromBits(ToBits(fVal) ^ ToBits(y.fVal)); }
  24
  25 --- a/gfx/skia/skia/src/opts/SkBlitMask_opts.h
  26 +++ b/gfx/skia/skia/src/opts/SkBlitMask_opts.h
  27 @@ -203,7 +203,13 @@
  28              //   ~~~>
  29              // a = 1*aa + d(1-1*aa) = aa + d(1-aa)
  30              // c = 0*aa + d(1-1*aa) =      d(1-aa)
  31 +
  32 +            // For big endian we have to swap the alpha-mask from 0,0,0,255 to 255,0,0,0
  33 +#ifdef SK_CPU_BENDIAN
  34 +            return Sk4px(Sk16b(aa) & Sk16b(255,0,0,0, 255,0,0,0, 255,0,0,0, 255,0,0,0))
  35 +#else
  36              return Sk4px(Sk16b(aa) & Sk16b(0,0,0,255, 0,0,0,255, 0,0,0,255, 0,0,0,255))
  37 +#endif
  38                   + d.approxMulDiv255(aa.inv());
  39          };
  40          while (h --> 0) {