1 files changed, 69 insertions, 0 deletions
diff --git a/user/thunderbird/skia-unified.patch b/user/thunderbird/skia-unified.patch
new file mode 100644
index 000000000..77bc56299
--- /dev/null
+++ b/user/thunderbird/skia-unified.patch
@@ -0,0 +1,69 @@
+https://bugzilla.mozilla.org/show_bug.cgi?id=1344659
+
+--- firefox-102.1.0/gfx/2d/Types.h
++++ firefox-102.1.0/gfx/2d/Types.h
+@@ -91,15 +91,8 @@ UNKNOWN,
+ // The following values are endian-independent synonyms. The _UINT32 suffix
+ // indicates that the name reflects the layout when viewed as a uint32_t
+ // value.
+-#if MOZ_LITTLE_ENDIAN()
+   A8R8G8B8_UINT32 = B8G8R8A8,  // 0xAARRGGBB
+   X8R8G8B8_UINT32 = B8G8R8X8,  // 0x00RRGGBB
+-#elif MOZ_BIG_ENDIAN()
+-  A8R8G8B8_UINT32 = A8R8G8B8,  // 0xAARRGGBB
+-  X8R8G8B8_UINT32 = X8R8G8B8,  // 0x00RRGGBB
+-#else
+-#  error "bad endianness"
+-#endif
+
+   // The following values are OS and endian-independent synonyms.
+   //
+
+
+https://bugzilla.mozilla.org/show_bug.cgi?id=1325259
+
+--- firefox-102.1.0/gfx/2d/DrawTargetSkia.cpp
++++ firefox-102.1.0/gfx/2d/DrawTargetSkia.cpp
+@@ -154,8 +154,12 @@ }
+   return surfaceBounds.Intersect(bounds);
+ }
+ 
++#if __sparc
++static const int kARGBAlphaOffset = 0;
++#else
+ static const int kARGBAlphaOffset =
+     SurfaceFormat::A8R8G8B8_UINT32 == SurfaceFormat::B8G8R8A8 ? 3 : 0;
++#endif
+ 
+ static bool VerifyRGBXFormat(uint8_t* aData, const IntSize& aSize,
+                              const int32_t aStride, SurfaceFormat aFormat) {
+# HG changeset patch
+# Parent  46ea866ca3acb8bb5e1709ceb799b9c94f591dec
+Problem description: Tab-titles that are too long to fit into a tab get faded out.
+                     On big endian this is broken and instead of fading out, the 
+                     tab gets white and the font transparent, leading to an unreadable
+                     tab-title
+Solution: This is not a real solution, but a hack. The real solution would have been
+          to byte-swap the correct buffer, but I could not find it.
+          So the next best thing is to deactivate the fading-effect. Now all tab-titles
+          are readable, albeit not as pretty to look at as they could be. 
+Side-effects: I have not yet found an unwanted side-effect.
+
+diff -r 46ea866ca3ac -r 6ef20eee3f8f gfx/2d/DrawTargetSkia.cpp
+--- a/gfx/2d/DrawTargetSkia.cpp	Tue Oct 22 12:27:22 2019 +0200
++++ b/gfx/2d/DrawTargetSkia.cpp	Thu Oct 31 09:11:56 2019 +0100
+@@ -1861,6 +1861,14 @@
+       SkCanvas::kPreserveLCDText_SaveLayerFlag |
+           (aCopyBackground ? SkCanvas::kInitWithPrevious_SaveLayerFlag : 0));
+ 
++#if MOZ_BIG_ENDIAN
++  // Pushing a layer where an aMask is defined produces wrong output.
++  // We _should_ endian swap the data, but I couldn't find a workable way to do so
++  // Therefore I deactivate those layers in the meantime.
++  // The result is: Tab-titles that are longer than the available space should be faded out.
++  //                The fading doesn't work, so we deactivate the fading-effect here.
++  if (!aMask)
++#endif
+   mCanvas->saveLayer(saveRec);
+ 
+   SetPermitSubpixelAA(aOpaque);