blob: ca92bf830d968650a27a9785bb9c64203092e153 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
# HG changeset patch
# User Lee Salzman <lsalzman@mozilla.com>
# Date 1540234148 14400
# Node ID f0f7573deea111d97bc96aa6b33e2518ee89da3a
# Parent 2ce8f6d1a64ef8ee845c595bc441234af72422fe
Bug 1500709 - fix big-endian RGBBitShift in Swizzle. r=me
CLOSED TREE
diff --git a/gfx/2d/Swizzle.cpp b/gfx/2d/Swizzle.cpp
--- a/gfx/2d/Swizzle.cpp
+++ b/gfx/2d/Swizzle.cpp
@@ -75,13 +75,13 @@ AlphaByteIndex(SurfaceFormat aFormat)
// The endian-dependent bit shift to access RGB of a UINT32 pixel.
static constexpr uint32_t RGBBitShift(SurfaceFormat aFormat) {
#if MOZ_LITTLE_ENDIAN
return 8 * RGBByteIndex(aFormat);
#else
- return 24 - 8 * RGBByteIndex(aFormat);
+ return 8 - 8 * RGBByteIndex(aFormat);
#endif
}
// The endian-dependent bit shift to access alpha of a UINT32 pixel.
static constexpr uint32_t AlphaBitShift(SurfaceFormat aFormat) {
return (RGBBitShift(aFormat) + 24) % 32;
|
