remove dst/rendertarget support for kARGB_4444_Config

src/core/SkDevice.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkDevice.h"
 #include "SkDeviceProperties.h"
 #include "SkDraw.h"
@@ skipping 14 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 
 SkDevice::SkDevice(const SkBitmap& bitmap)
     : fBitmap(bitmap), fLeakyProperties(SkDeviceProperties::MakeDefault())
 #ifdef SK_DEBUG
     , fAttachedToCanvas(false)
 #endif
 {
     fOrigin.setZero();
     fMetaData = NULL;
+    
+    SkASSERT(SkBitmap::kARGB_4444_Config != bitmap.config());
 }
 
 SkDevice::SkDevice(const SkBitmap& bitmap, const SkDeviceProperties& deviceProperties)
     : fBitmap(bitmap), fLeakyProperties(deviceProperties)
 #ifdef SK_DEBUG
     , fAttachedToCanvas(false)
 #endif
 {
     fOrigin.setZero();
     fMetaData = NULL;
@@ skipping 503 matching lines @@
         paint.getStyle() != SkPaint::kFill_Style ||
         !SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrcOver_Mode)) {
         // turn off lcd
         flags->fFlags = paint.getFlags() & ~SkPaint::kLCDRenderText_Flag;
         flags->fHinting = paint.getHinting();
         return true;
     }
     // we're cool with the paint as is
     return false;
 }