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73 lines
2.4 KiB
73 lines
2.4 KiB
4 months ago
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/*
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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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// TODO: update clients so we can remove this include, they should IWYU
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#include "include/core/SkBitmap.h"
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#include "include/core/SkData.h"
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#include "include/core/SkEncodedImageFormat.h"
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#include "include/core/SkPixmap.h"
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#include "include/core/SkStream.h"
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class SkBitmap;
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/**
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* Encode SkPixmap in the given binary image format.
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*
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* @param dst results are written to this stream.
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* @param src source pixels.
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* @param format image format, not all formats are supported.
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* @param quality range from 0-100, this is supported by jpeg and webp.
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* higher values correspond to improved visual quality, but less compression.
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*
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* @return false iff input is bad or format is unsupported.
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*
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* Will always return false if Skia is compiled without image
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* encoders.
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*
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* For SkEncodedImageFormat::kWEBP, if quality is 100, it will use lossless compression. Otherwise
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* it will use lossy.
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*
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* For examples of encoding an image to a file or to a block of memory,
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* see tools/ToolUtils.h.
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*/
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SK_API bool SkEncodeImage(SkWStream* dst, const SkPixmap& src,
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SkEncodedImageFormat format, int quality);
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/**
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* The following helper function wraps SkEncodeImage().
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*/
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SK_API bool SkEncodeImage(SkWStream* dst, const SkBitmap& src, SkEncodedImageFormat f, int q);
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/**
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* Encode SkPixmap in the given binary image format.
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*
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* @param src source pixels.
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* @param format image format, not all formats are supported.
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* @param quality range from 0-100, this is supported by jpeg and webp.
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* higher values correspond to improved visual quality, but less compression.
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*
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* @return encoded data or nullptr if input is bad or format is unsupported.
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*
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* Will always return nullptr if Skia is compiled without image
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* encoders.
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*
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* For SkEncodedImageFormat::kWEBP, if quality is 100, it will use lossless compression. Otherwise
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* it will use lossy.
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*/
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SK_API sk_sp<SkData> SkEncodePixmap(const SkPixmap& src, SkEncodedImageFormat format, int quality);
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/**
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* Helper that extracts the pixmap from the bitmap, and then calls SkEncodePixmap()
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*/
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SK_API sk_sp<SkData> SkEncodeBitmap(const SkBitmap& src, SkEncodedImageFormat format, int quality);
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#endif // SkImageEncoder_DEFINED
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