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1 # HG changeset patch |
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2 # Parent aecb4600e5da17443b224c79eee178c1d8e155e3 |
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3 For FF68, AntiAliasing of XULTexts seem to be broken on big endian (s390x). Text and icons of the sandwich-menu to the |
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4 right of the address bar, as well as plugin-windows appears transparant, which usually means unreadable (white on white). |
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5 |
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6 diff -r aecb4600e5da gfx/skia/skia/include/private/SkNx.h |
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7 --- a/gfx/skia/skia/include/private/SkNx.h Tue Aug 20 09:46:55 2019 +0200 |
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8 +++ b/gfx/skia/skia/include/private/SkNx.h Mon Sep 09 10:04:06 2019 +0200 |
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9 @@ -238,7 +238,18 @@ |
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10 AI SkNx operator*(const SkNx& y) const { return fVal * y.fVal; } |
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11 AI SkNx operator/(const SkNx& y) const { return fVal / y.fVal; } |
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12 |
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13 + // On Big endian the commented out variant doesn't work, |
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14 + // and honestly, I have no idea why it exists in the first place. |
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15 + // The reason its broken is, I think, that it defaults to the double-variant of ToBits() |
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16 + // which gets a 64-bit integer, and FromBits returns 32-bit, |
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17 + // cutting off the wrong half again. |
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18 + // Overall, I see no reason to have ToBits and FromBits at all (even for floats/doubles). |
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19 + // Still we are only "fixing" this for big endian and leave little endian alone (never touch a running system) |
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20 +#ifdef SK_CPU_BENDIAN |
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21 + AI SkNx operator&(const SkNx& y) const { return fVal & y.fVal; } |
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22 +#else |
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23 AI SkNx operator&(const SkNx& y) const { return FromBits(ToBits(fVal) & ToBits(y.fVal)); } |
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24 +#endif |
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25 AI SkNx operator|(const SkNx& y) const { return FromBits(ToBits(fVal) | ToBits(y.fVal)); } |
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26 AI SkNx operator^(const SkNx& y) const { return FromBits(ToBits(fVal) ^ ToBits(y.fVal)); } |
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27 |
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28 diff -r aecb4600e5da gfx/skia/skia/src/opts/SkBlitMask_opts.h |
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29 --- a/gfx/skia/skia/src/opts/SkBlitMask_opts.h Tue Aug 20 09:46:55 2019 +0200 |
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30 +++ b/gfx/skia/skia/src/opts/SkBlitMask_opts.h Mon Sep 09 10:04:06 2019 +0200 |
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31 @@ -203,7 +203,13 @@ |
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32 // ~~~> |
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33 // a = 1*aa + d(1-1*aa) = aa + d(1-aa) |
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34 // c = 0*aa + d(1-1*aa) = d(1-aa) |
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35 + |
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36 + // For big endian we have to swap the alpha-mask from 0,0,0,255 to 255,0,0,0 |
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37 +#ifdef SK_CPU_BENDIAN |
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38 + return Sk4px(Sk16b(aa) & Sk16b(255,0,0,0, 255,0,0,0, 255,0,0,0, 255,0,0,0)) |
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39 +#else |
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40 return Sk4px(Sk16b(aa) & Sk16b(0,0,0,255, 0,0,0,255, 0,0,0,255, 0,0,0,255)) |
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41 +#endif |
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42 + d.approxMulDiv255(aa.inv()); |
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43 }; |
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44 while (h --> 0) { |