From 46f9ac5ef34bf589dd512d69283f34bd0c2a5bc9 Mon Sep 17 00:00:00 2001
From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
Date: Sat, 10 Aug 2019 13:18:18 +0000
Subject: experimental/firefox: add two big endian patches

---
 experimental/firefox/yuv-be.patch | 48 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 experimental/firefox/yuv-be.patch

(limited to 'experimental/firefox/yuv-be.patch')

diff --git a/experimental/firefox/yuv-be.patch b/experimental/firefox/yuv-be.patch
new file mode 100644
index 000000000..ccb0c2fd8
--- /dev/null
+++ b/experimental/firefox/yuv-be.patch
@@ -0,0 +1,48 @@
+# HG changeset patch
+# User A. Wilcox <AWilcox@Wilcox-Tech.com>
+# Date 1543674229 0
+#      Sat Dec 01 14:23:49 2018 +0000
+# Node ID 0309ff19e46b126c527e633518d7de8570442114
+# Parent  53107afbc21ec78e7ac46d37af212505f2032d5d
+Bug 1511604 - Swizzle YCbCr->RGB data on big-endian machines
+
+diff -r 53107afbc21e -r 0309ff19e46b gfx/ycbcr/YCbCrUtils.cpp
+--- a/gfx/ycbcr/YCbCrUtils.cpp	Wed Nov 07 04:50:21 2018 +0000
++++ b/gfx/ycbcr/YCbCrUtils.cpp	Sat Dec 01 14:23:49 2018 +0000
+@@ -3,7 +3,9 @@
+  * License, v. 2.0. If a copy of the MPL was not distributed with this
+  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ 
++#include "mozilla/EndianUtils.h"
+ #include "gfx2DGlue.h"
++#include "mozilla/gfx/Swizzle.h"
+ 
+ #include "YCbCrUtils.h"
+ #include "yuv_convert.h"
+@@ -236,6 +238,13 @@
+                           yuvtype,
+                           srcData.mYUVColorSpace);
+   }
++#if MOZ_BIG_ENDIAN
++  // libyuv makes endian-correct result, which needs to be swapped to BGRX
++  if (aDestFormat != SurfaceFormat::R5G6B5_UINT16)
++    gfx::SwizzleData(aDestBuffer, aStride, gfx::SurfaceFormat::X8R8G8B8,
++                     aDestBuffer, aStride, gfx::SurfaceFormat::B8G8R8X8,
++                     srcData.mPicSize);
++#endif
+ }
+ 
+ void
+@@ -257,6 +266,12 @@
+                         aSrcStrideYA,
+                         aSrcStrideUV,
+                         aDstStrideARGB);
++#if MOZ_BIG_ENDIAN
++  // libyuv makes endian-correct result, which needs to be swapped to BGRA
++  gfx::SwizzleData(aDstARGB, aDstStrideARGB, gfx::SurfaceFormat::A8R8G8B8,
++                   aDstARGB, aDstStrideARGB, gfx::SurfaceFormat::B8G8R8A8,
++                   IntSize(aWidth, aHeight));
++#endif
+ }
+ 
+ } // namespace gfx
-- 
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