Revert "Implementation of image decoding for bmp files, in accordance with the new API."

src/codec/SkCodec_libbmp.h

Index: src/codec/SkCodec_libbmp.h
diff --git a/src/codec/SkCodec_libbmp.h b/src/codec/SkCodec_libbmp.h
deleted file mode 100644
index f35b88dc69d880c2f3ec698437bd93298a979692..0000000000000000000000000000000000000000
--- a/src/codec/SkCodec_libbmp.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * 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 "SkImageInfo.h"
-#include "SkMaskSwizzler.h"
-#include "SkStream.h"
-#include "SkSwizzler.h"
-#include "SkTypes.h"
-
-// TODO: rename SkCodec_libbmp files to SkBmpCodec
-// TODO: define a wrapper for SkDebugf that doesn't always print
-/*
- *
- * This class implements the decoding for bmp images
- *
- */
-class SkBmpCodec : public SkCodec {
-public:
-
-    /*
-     *
-     * Describes if rows of the input start at the top or bottom of the image
-     *
-     */
-    enum RowOrder {
-        kTopDown_RowOrder,
-        kBottomUp_RowOrder
-    };
-
-    /*
-     *
-     * Checks the start of the stream to see if the image is a bitmap
-     *
-     */
-    static bool IsBmp(SkStream*);
-
-    /*
-     *
-     * Assumes IsBmp was called and returned true
-     * Creates a bitmap decoder
-     * Reads enough of the stream to determine the image format
-     *
-     */
-    static SkCodec* NewFromStream(SkStream*);
-
-protected:
-
-    /*
-     *
-     * Initiates the bitmap decode
-     *
-     */
-    virtual Result onGetPixels(const SkImageInfo& dstInfo, void* dst,
-                               size_t dstRowBytes, SkPMColor*,
-                               int*) SK_OVERRIDE;
-
-private:
-
-    /*
-     *
-     * Used to define the input format of the bitmap
-     *
-     */
-    enum BitmapInputFormat {
-        kStandard_BitmapInputFormat,
-        kRLE_BitmapInputFormat,
-        kBitMask_BitmapInputFormat,
-        kUnknown_BitmapInputFormat
-    };
-
-    /*
-     *
-     * Performs the bitmap decoding for bit masks input format
-     *
-     */
-    Result decodeMask(const SkImageInfo& dstInfo, void* dst,
-                      size_t dstRowBytes);
-
-    /*
-     *
-     * Set an RLE pixel using the color table
-     *
-     */
-    void setRLEPixel(SkPMColor* dst, size_t dstRowBytes, int height,
-                     uint32_t x, uint32_t y, uint8_t index);
-
-    /*
-     *
-     * Performs the bitmap decoding for RLE input format
-     *
-     */
-    Result decodeRLE(const SkImageInfo& dstInfo, void* dst,
-                     size_t dstRowBytes);
-
-    /*
-     *
-     * Performs the bitmap decoding for standard input format
-     *
-     */
-    Result decode(const SkImageInfo& dstInfo, void* dst, size_t dstRowBytes);
-
-    /*
-     *
-     * Creates an instance of the decoder
-     * Called only by NewFromStream
-     *
-     * @param srcInfo contains the source width and height
-     * @param stream the stream of image data
-     * @param bitsPerPixel the number of bits used to store each pixel
-     * @param format the format of the bmp file
-     * @param masks optional color masks for certain bmp formats, passes
-                    ownership to SkBmpCodec
-     * @param colorTable array representing the color table for index-based bmp
-     *                   formats, colors are unpremultiplied, passes ownership
-     *                   to SkBmpCodec
-     * @param rowOrder indicates whether rows are ordered top-down or bottom-up
-     * @param remainingBytes used only for RLE decodes, as we must decode all
-     *                  of the data at once rather than row by row
-     *                  it indicates the amount of data left in the stream
-     *                  after decoding the headers
-     *
-     */
-    SkBmpCodec(const SkImageInfo& srcInfo, SkStream* stream,
-               uint16_t bitsPerPixel, BitmapInputFormat format,
-               SkMasks* masks, SkPMColor* colorTable,
-               RowOrder rowOrder, uint32_t remainingBytes);
-
-    // Fields
-    const uint16_t                      fBitsPerPixel;
-    const BitmapInputFormat             fInputFormat;
-    SkAutoTDelete<SkMasks>              fMasks;          // owned
-    const SkAutoTDeleteArray<SkPMColor> fColorTable;     // owned, unpremul
-    const RowOrder                      fRowOrder;
-    const uint32_t                      fRemainingBytes;
-
-    typedef SkCodec INHERITED;
-};