swizzle color table if necessary

src/gpu/SkGr.cpp

Index: src/gpu/SkGr.cpp
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index 0b60ede8361ac80febc27ebd0c96b45b49d4f044..9cafbf69c0d030a281f4629c503cb52bcc61e0b1 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -6,6 +6,7 @@
  */
 
 #include "SkGr.h"
+#include "SkConfig8888.h"
 
 /*  Fill out buffer with the compressed format Ganesh expects from a colortable
  based bitmap. [palette (colortable) + indices].
@@ -30,7 +31,11 @@ static void build_compressed_data(void* buffer, const SkBitmap& bitmap) {
     SkColorTable* ctable = bitmap.getColorTable();
     char* dst = (char*)buffer;
 
-    memcpy(dst, ctable->lockColors(), ctable->count() * sizeof(SkPMColor));
+    uint32_t* colorTableDst = reinterpret_cast<uint32_t*>(dst);
+    const uint32_t* colorTableSrc = reinterpret_cast<const uint32_t*>(ctable->lockColors());
+    SkConvertConfig8888Pixels(colorTableDst, 0, SkCanvas::kRGBA_Premul_Config8888,
+                              colorTableSrc, 0, SkCanvas::kNative_Premul_Config8888,
+                              ctable->count(), 1);
     ctable->unlockColors();
 
     // always skip a full 256 number of entries, even if we memcpy'd fewer