e8597a4dd0
This image decoding implementation has been replaced by SkCodec in Android. Additionally, we have replaced uses of SkImageDecoder in Skia and Google3 with uses of SkCodec. Now we can delete SkImageDecoder :). BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1820503002 CQ_EXTRA_TRYBOTS=client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot,Build-Mac-Clang-x86_64-Release-CMake-Trybot Committed: https://skia.googlesource.com/skia/+/f799706656f2581c5bf5510d94df3fa17cce1607 Committed: https://skia.googlesource.com/skia/+/5b6e73e0c8282c4d85accbfbcecc6dee84f8a1eb Committed: https://skia.googlesource.com/skia/+/f037fdebda2a2626e6512d7532063f2cd41a264d Review URL: https://codereview.chromium.org/1820503002
125 lines
3.9 KiB
C++
125 lines
3.9 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkImageEncoder_DEFINED
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#define SkImageEncoder_DEFINED
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#include "SkImageInfo.h"
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#include "SkTRegistry.h"
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class SkBitmap;
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class SkPixelSerializer;
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class SkPixmap;
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class SkData;
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class SkWStream;
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class SkImageEncoder {
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public:
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// TODO (scroggo): Merge with SkEncodedFormat.
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enum Type {
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kUnknown_Type,
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kBMP_Type,
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kGIF_Type,
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kICO_Type,
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kJPEG_Type,
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kPNG_Type,
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kWBMP_Type,
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kWEBP_Type,
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kKTX_Type,
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};
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static SkImageEncoder* Create(Type);
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virtual ~SkImageEncoder();
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/* Quality ranges from 0..100 */
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enum {
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kDefaultQuality = 80
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};
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/**
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* Encode bitmap 'bm', returning the results in an SkData, at quality level
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* 'quality' (which can be in range 0-100). If the bitmap cannot be
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* encoded, return null. On success, the caller is responsible for
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* calling unref() on the data when they are finished.
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*/
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SkData* encodeData(const SkBitmap&, int quality);
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/**
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* Encode bitmap 'bm' in the desired format, writing results to
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* file 'file', at quality level 'quality' (which can be in range
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* 0-100). Returns false on failure.
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*/
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bool encodeFile(const char file[], const SkBitmap& bm, int quality);
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/**
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* Encode bitmap 'bm' in the desired format, writing results to
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* stream 'stream', at quality level 'quality' (which can be in
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* range 0-100). Returns false on failure.
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*/
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bool encodeStream(SkWStream* stream, const SkBitmap& bm, int quality);
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static SkData* EncodeData(const SkImageInfo&, const void* pixels, size_t rowBytes,
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Type, int quality);
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static SkData* EncodeData(const SkBitmap&, Type, int quality);
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static SkData* EncodeData(const SkPixmap&, Type, int quality);
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static bool EncodeFile(const char file[], const SkBitmap&, Type,
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int quality);
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static bool EncodeStream(SkWStream*, const SkBitmap&, Type,
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int quality);
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/** Uses SkImageEncoder to serialize images that are not already
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encoded as SkImageEncoder::kPNG_Type images. */
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static SkPixelSerializer* CreatePixelSerializer();
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protected:
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/**
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* Encode bitmap 'bm' in the desired format, writing results to
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* stream 'stream', at quality level 'quality' (which can be in
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* range 0-100).
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*
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* This must be overridden by each SkImageEncoder implementation.
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*/
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virtual bool onEncode(SkWStream* stream, const SkBitmap& bm, int quality) = 0;
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};
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// This macro declares a global (i.e., non-class owned) creation entry point
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// for each encoder (e.g., CreateJPEGImageEncoder)
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#define DECLARE_ENCODER_CREATOR(codec) \
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SkImageEncoder *Create ## codec ();
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// This macro defines the global creation entry point for each encoder. Each
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// encoder implementation that registers with the encoder factory must call it.
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#define DEFINE_ENCODER_CREATOR(codec) \
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SkImageEncoder* Create##codec() { return new Sk##codec; }
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// All the encoders known by Skia. Note that, depending on the compiler settings,
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// not all of these will be available
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/** An ARGBImageEncoder will always write out
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* bitmap.width() * bitmap.height() * 4
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* bytes.
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*/
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DECLARE_ENCODER_CREATOR(ARGBImageEncoder);
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DECLARE_ENCODER_CREATOR(JPEGImageEncoder);
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DECLARE_ENCODER_CREATOR(PNGImageEncoder);
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DECLARE_ENCODER_CREATOR(KTXImageEncoder);
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DECLARE_ENCODER_CREATOR(WEBPImageEncoder);
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#if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
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DECLARE_ENCODER_CREATOR(PNGImageEncoder_CG);
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#endif
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#if defined(SK_BUILD_FOR_WIN)
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DECLARE_ENCODER_CREATOR(ImageEncoder_WIC);
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#endif
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// Typedef to make registering encoder callback easier
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// This has to be defined outside SkImageEncoder. :(
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typedef SkTRegistry<SkImageEncoder*(*)(SkImageEncoder::Type)> SkImageEncoder_EncodeReg;
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#endif
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