automatic import of firefoxopeneuler23.03

1 files changed, 64 insertions, 0 deletions

diff --git a/mozilla-bmo1504834-part3.patch b/mozilla-bmo1504834-part3.patch
new file mode 100644
index 0000000..d07702e
--- /dev/null
+++ b/mozilla-bmo1504834-part3.patch
@@ -0,0 +1,64 @@
+# HG changeset patch
+# Parent  d1d66f7e4d0e7fd45e91e4fcee07555e72046d48
+For FF68, AntiAliasing of XULTexts seem to be broken on big endian (s390x). Text and icons of the sandwich-menu to the
+right of the address bar, as well as plugin-windows appears transparant, which usually means unreadable (white on white).
+
+diff --git a/gfx/skia/skia/include/private/SkNx.h b/gfx/skia/skia/include/private/SkNx.h
+--- a/gfx/skia/skia/include/private/SkNx.h
++++ b/gfx/skia/skia/include/private/SkNx.h
+@@ -233,17 +233,28 @@ struct SkNx<1,T> {
+     AI SkNx operator<<(int bits) const { return fVal << bits; }
+     AI SkNx operator>>(int bits) const { return fVal >> bits; }
+ 
+     AI SkNx operator+(const SkNx& y) const { return fVal + y.fVal; }
+     AI SkNx operator-(const SkNx& y) const { return fVal - y.fVal; }
+     AI SkNx operator*(const SkNx& y) const { return fVal * y.fVal; }
+     AI SkNx operator/(const SkNx& y) const { return fVal / y.fVal; }
+ 
++    // On Big endian the commented out variant doesn't work,
++    // and honestly, I have no idea why it exists in the first place.
++    // The reason its broken is, I think, that it defaults to the double-variant of ToBits()
++    // which gets a 64-bit integer, and FromBits returns 32-bit,
++    // cutting off the wrong half again.
++    // Overall, I see no reason to have ToBits and FromBits at all (even for floats/doubles).
++    // Still we are only "fixing" this for big endian and leave little endian alone (never touch a running system)
++#ifdef SK_CPU_BENDIAN
++    AI SkNx operator&(const SkNx& y) const { return fVal & y.fVal; }
++#else
+     AI SkNx operator&(const SkNx& y) const { return FromBits(ToBits(fVal) & ToBits(y.fVal)); }
++#endif
+     AI SkNx operator|(const SkNx& y) const { return FromBits(ToBits(fVal) | ToBits(y.fVal)); }
+     AI SkNx operator^(const SkNx& y) const { return FromBits(ToBits(fVal) ^ ToBits(y.fVal)); }
+ 
+     AI SkNx operator==(const SkNx& y) const { return FromBits(fVal == y.fVal ? ~0 : 0); }
+     AI SkNx operator!=(const SkNx& y) const { return FromBits(fVal != y.fVal ? ~0 : 0); }
+     AI SkNx operator<=(const SkNx& y) const { return FromBits(fVal <= y.fVal ? ~0 : 0); }
+     AI SkNx operator>=(const SkNx& y) const { return FromBits(fVal >= y.fVal ? ~0 : 0); }
+     AI SkNx operator< (const SkNx& y) const { return FromBits(fVal <  y.fVal ? ~0 : 0); }
+diff --git a/gfx/skia/skia/src/opts/SkBlitMask_opts.h b/gfx/skia/skia/src/opts/SkBlitMask_opts.h
+--- a/gfx/skia/skia/src/opts/SkBlitMask_opts.h
++++ b/gfx/skia/skia/src/opts/SkBlitMask_opts.h
+@@ -198,17 +198,23 @@ namespace SK_OPTS_NS {
+                                        const SkAlpha* mask, size_t maskRB,
+                                        int w, int h) {
+         auto fn = [](const Sk4px& d, const Sk4px& aa) {
+             //   = (s + d(1-sa))aa + d(1-aa)
+             //   = s*aa + d(1-sa*aa)
+             //   ~~~>
+             // a = 1*aa + d(1-1*aa) = aa + d(1-aa)
+             // c = 0*aa + d(1-1*aa) =      d(1-aa)
++
++            // For big endian we have to swap the alpha-mask from 0,0,0,255 to 255,0,0,0
++#ifdef SK_CPU_BENDIAN
++            return Sk4px(Sk16b(aa) & Sk16b(255,0,0,0, 255,0,0,0, 255,0,0,0, 255,0,0,0))
++#else
+             return Sk4px(Sk16b(aa) & Sk16b(0,0,0,255, 0,0,0,255, 0,0,0,255, 0,0,0,255))
++#endif
+                  + d.approxMulDiv255(aa.inv());
+         };
+         while (h --> 0) {
+             Sk4px::MapDstAlpha(w, dst, mask, fn);
+             dst  +=  dstRB / sizeof(*dst);
+             mask += maskRB / sizeof(*mask);
+         }
+     }