eliminate code related to SkBitmap::Config

src/images/SkImageDecoder.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkImageDecoder.h"
 #include "SkBitmap.h"
 #include "SkImagePriv.h"
 #include "SkPixelRef.h"
 #include "SkStream.h"
 #include "SkTemplates.h"
 #include "SkCanvas.h"
 
 SkImageDecoder::SkImageDecoder()
     : fPeeker(NULL)
 #ifdef SK_SUPPORT_LEGACY_IMAGEDECODER_CHOOSER
     , fChooser(NULL)
 #endif
     , fAllocator(NULL)
     , fSampleSize(1)
     , fDefaultPref(kUnknown_SkColorType)
     , fPreserveSrcDepth(false)
     , fDitherImage(true)
-#ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG
-    , fUsePrefTable(false)
-#endif
     , fSkipWritingZeroes(false)
     , fPreferQualityOverSpeed(false)
     , fRequireUnpremultipliedColors(false) {
 }
 
 SkImageDecoder::~SkImageDecoder() {
     SkSafeUnref(fPeeker);
 #ifdef SK_SUPPORT_LEGACY_IMAGEDECODER_CHOOSER
     SkSafeUnref(fChooser);
 #endif
     SkSafeUnref(fAllocator);
 }
 
 void SkImageDecoder::copyFieldsToOther(SkImageDecoder* other) {
     if (NULL == other) {
         return;
     }
     other->setPeeker(fPeeker);
 #ifdef SK_SUPPORT_LEGACY_IMAGEDECODER_CHOOSER
     other->setChooser(fChooser);
 #endif
     other->setAllocator(fAllocator);
     other->setSampleSize(fSampleSize);
-#ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG
-    if (fUsePrefTable) {
-        other->setPrefConfigTable(fPrefTable);
-    } else {
-        other->fDefaultPref = fDefaultPref;
-    }
-#endif
     other->setPreserveSrcDepth(fPreserveSrcDepth);
     other->setDitherImage(fDitherImage);
     other->setSkipWritingZeroes(fSkipWritingZeroes);
     other->setPreferQualityOverSpeed(fPreferQualityOverSpeed);
     other->setRequireUnpremultipliedColors(fRequireUnpremultipliedColors);
 }
 
 SkImageDecoder::Format SkImageDecoder::getFormat() const {
     return kUnknown_Format;
 }
@@ skipping 71 matching lines @@
 }
 #endif
 
 bool SkImageDecoder::allocPixelRef(SkBitmap* bitmap,
                                    SkColorTable* ctable) const {
     return bitmap->allocPixels(fAllocator, ctable);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
-#ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG
-void SkImageDecoder::setPrefConfigTable(const PrefConfigTable& prefTable) {
-    fUsePrefTable = true;
-    fPrefTable = prefTable;
-}
-#endif
-
-// TODO: use colortype in fPrefTable, fDefaultPref so we can stop using SkBitmapConfigToColorType()
-//
 SkColorType SkImageDecoder::getPrefColorType(SrcDepth srcDepth, bool srcHasAlpha) const {
     SkColorType ct = fDefaultPref;
-#ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG
-    if (fUsePrefTable) {
-        // Until we kill or change the PrefTable, we have to go into Config land for a moment.
-        SkBitmap::Config config = SkBitmap::kNo_Config;
-        switch (srcDepth) {
-            case kIndex_SrcDepth:
-                config = srcHasAlpha ? fPrefTable.fPrefFor_8Index_YesAlpha_src
-                                     : fPrefTable.fPrefFor_8Index_NoAlpha_src;
-                break;
-            case k8BitGray_SrcDepth:
-                config = fPrefTable.fPrefFor_8Gray_src;
-                break;
-            case k32Bit_SrcDepth:
-                config = srcHasAlpha ? fPrefTable.fPrefFor_8bpc_YesAlpha_src
-                                     : fPrefTable.fPrefFor_8bpc_NoAlpha_src;
-                break;
-        }
-        // now return to SkColorType land
-        ct = SkBitmapConfigToColorType(config);
-    }
-#endif
     if (fPreserveSrcDepth) {
         switch (srcDepth) {
             case kIndex_SrcDepth:
                 ct = kIndex_8_SkColorType;
                 break;
             case k8BitGray_SrcDepth:
                 ct = kN32_SkColorType;
                 break;
             case k32Bit_SrcDepth:
                 ct = kN32_SkColorType;
@@ skipping 125 matching lines @@
             if (kUnknown_Format == *format) {
                 if (stream->rewind()) {
                     *format = GetStreamFormat(stream);
                 }
             }
         }
         delete codec;
     }
     return success;
 }