swizzle color table if necessary

src/gpu/SkGr.cpp

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGr.h"
+#include "SkConfig8888.h"
 
 /*  Fill out buffer with the compressed format Ganesh expects from a colortable
  based bitmap. [palette (colortable) + indices].
 
  At the moment Ganesh only supports 8bit version. If Ganesh allowed we others
  we could detect that the colortable.count is <= 16, and then repack the
  indices as nibbles to save RAM, but it would take more time (i.e. a lot
  slower than memcpy), so skipping that for now.
 
  Ganesh wants a full 256 palette entry, even though Skia's ctable is only as big
  as the colortable.count says it is.
  */
 static void build_compressed_data(void* buffer, const SkBitmap& bitmap) {
     SkASSERT(SkBitmap::kIndex8_Config == bitmap.config());
 
     SkAutoLockPixels alp(bitmap);
     if (!bitmap.readyToDraw()) {
         SkDEBUGFAIL("bitmap not ready to draw!");
         return;
     }
 
     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
     dst += kGrColorTableSize;
 
     if ((unsigned)bitmap.width() == bitmap.rowBytes()) {
         memcpy(dst, bitmap.getPixels(), bitmap.getSize());
     } else {
         // need to trim off the extra bytes per row
         size_t width = bitmap.width();
@@ skipping 163 matching lines @@
             return kRGB_565_GrPixelConfig;
         case SkBitmap::kARGB_4444_Config:
             return kRGBA_4444_GrPixelConfig;
         case SkBitmap::kARGB_8888_Config:
             return kSkia8888_GrPixelConfig;
         default:
             // kNo_Config, kA1_Config missing
             return kUnknown_GrPixelConfig;
     }
 }