72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
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/*
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* Copyright 2023 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 SkJpegGainmapEncoder_DEFINED
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#define SkJpegGainmapEncoder_DEFINED
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#include "include/encode/SkJpegEncoder.h"
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class SkPixmap;
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class SkWStream;
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struct SkGainmapInfo;
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class SK_API SkJpegGainmapEncoder {
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public:
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/**
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* Encode a JpegR image to |dst|.
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*
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* The base image is specified by |base|, and |baseOptions| controls the encoding behavior for
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* the base image.
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*
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* The gainmap image is specified by |gainmap|, and |gainmapOptions| controls the encoding
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* behavior for the gainmap image.
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*
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* The rendering behavior of the gainmap image is provided in |gainmapInfo|. Not all gainmap
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* based images are compatible with JpegR. If the image is not compatible with JpegR, then
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* convert the gainmap to a format that is capable with JpegR. This conversion may result in
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* less precise quantization of the gainmap image.
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*
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* Returns true on success. Returns false on an invalid or unsupported |src|.
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*/
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static bool EncodeJpegR(SkWStream* dst,
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const SkPixmap& base,
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const SkJpegEncoder::Options& baseOptions,
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const SkPixmap& gainmap,
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const SkJpegEncoder::Options& gainmapOptions,
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const SkGainmapInfo& gainmapInfo);
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/**
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* Encode an HDRGM image to |dst|.
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*
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* The base image is specified by |base|, and |baseOptions| controls the encoding behavior for
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* the base image.
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*
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* The gainmap image is specified by |gainmap|, and |gainmapOptions| controls the encoding
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* behavior for the gainmap image.
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*
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* The rendering behavior of the gainmap image is provided in |gainmapInfo|.
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*
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* If |baseOptions| or |gainmapOptions| specify XMP metadata, then that metadata will be
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* overwritten.
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*
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* Returns true on success. Returns false on an invalid or unsupported |src|.
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*/
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static bool EncodeHDRGM(SkWStream* dst,
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const SkPixmap& base,
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const SkJpegEncoder::Options& baseOptions,
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const SkPixmap& gainmap,
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const SkJpegEncoder::Options& gainmapOptions,
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const SkGainmapInfo& gainmapInfo);
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/**
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* Write a Multi Picture Format containing the |imageCount| images specified by |images|.
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*/
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static bool MakeMPF(SkWStream* dst, const SkData** images, size_t imageCount);
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};
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#endif
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