Add SkEncodedInfo to report properties of encoded image data

src/codec/SkWbmpCodec.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCodec.h"
 #include "SkCodecPriv.h"
 #include "SkColorPriv.h"
@@ skipping 86 matching lines @@
 
 SkSwizzler* SkWbmpCodec::initializeSwizzler(const SkImageInfo& info, const SkPMColor* ctable,
         const Options& opts) {
     return SkSwizzler::CreateSwizzler(SkSwizzler::kBit, ctable, info, opts);
 }
 
 bool SkWbmpCodec::readRow(uint8_t* row) {
     return this->stream()->read(row, fSrcRowBytes) == fSrcRowBytes;
 }
 
-SkWbmpCodec::SkWbmpCodec(const SkImageInfo& info, SkStream* stream)
-    : INHERITED(info, stream)
+SkWbmpCodec::SkWbmpCodec(int width, int height, const SkEncodedInfo& info, SkStream* stream)
+    : INHERITED(width, height, info, stream)
     , fSrcRowBytes(get_src_row_bytes(this->getInfo().width()))
     , fSwizzler(nullptr)
     , fColorTable(nullptr)
 {}
 
 SkEncodedFormat SkWbmpCodec::onGetEncodedFormat() const {
     return kWBMP_SkEncodedFormat;
 }
 
 SkCodec::Result SkWbmpCodec::onGetPixels(const SkImageInfo& info,
@@ skipping 40 matching lines @@
     SkMemoryStream stream(data);
     return read_header(&stream, nullptr);
 }
 
 SkCodec* SkWbmpCodec::NewFromStream(SkStream* stream) {
     SkAutoTDelete<SkStream> streamDeleter(stream);
     SkISize size;
     if (!read_header(stream, &size)) {
         return nullptr;
     }
-    SkImageInfo info = SkImageInfo::Make(size.width(), size.height(),
-            kGray_8_SkColorType, kOpaque_SkAlphaType);
-    return new SkWbmpCodec(info, streamDeleter.release());
+    SkEncodedInfo info = SkEncodedInfo::Make(SkEncodedInfo::kGray_Color,
+            SkEncodedInfo::kOpaque_Alpha, 1);
+    return new SkWbmpCodec(size.width(), size.height(), info, streamDeleter.release());
 }
 
 int SkWbmpCodec::onGetScanlines(void* dst, int count, size_t dstRowBytes) {
     void* dstRow = dst;
     for (int y = 0; y < count; ++y) {
         if (!this->readRow(fSrcBuffer.get())) {
             return y;
         }
         fSwizzler->swizzle(dstRow, fSrcBuffer.get());
         dstRow = SkTAddOffset<void>(dstRow, dstRowBytes);
@@ skipping 27 matching lines @@
     }
 
     // Initialize the swizzler
     fSwizzler.reset(this->initializeSwizzler(dstInfo, get_color_ptr(fColorTable.get()), options));
     SkASSERT(fSwizzler);
 
     fSrcBuffer.reset(fSrcRowBytes);
 
     return kSuccess;
 }