From a87508008dfa1604baf2d4e39bf44704c00f261c Mon Sep 17 00:00:00 2001 From: Jarred Sumner Date: Sun, 3 Apr 2022 16:34:10 -0700 Subject: skia WIP --- src/deps/skia/include/core/SkImageEncoder.h | 72 +++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 src/deps/skia/include/core/SkImageEncoder.h (limited to 'src/deps/skia/include/core/SkImageEncoder.h') diff --git a/src/deps/skia/include/core/SkImageEncoder.h b/src/deps/skia/include/core/SkImageEncoder.h new file mode 100644 index 000000000..fd7bc8036 --- /dev/null +++ b/src/deps/skia/include/core/SkImageEncoder.h @@ -0,0 +1,72 @@ +/* + * Copyright 2011 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef SkImageEncoder_DEFINED +#define SkImageEncoder_DEFINED + +// TODO: update clients so we can remove this include, they should IWYU +#include "include/core/SkBitmap.h" + +#include "include/core/SkData.h" +#include "include/core/SkEncodedImageFormat.h" +#include "include/core/SkPixmap.h" +#include "include/core/SkStream.h" + +class SkBitmap; + +/** + * Encode SkPixmap in the given binary image format. + * + * @param dst results are written to this stream. + * @param src source pixels. + * @param format image format, not all formats are supported. + * @param quality range from 0-100, this is supported by jpeg and webp. + * higher values correspond to improved visual quality, but less compression. + * + * @return false iff input is bad or format is unsupported. + * + * Will always return false if Skia is compiled without image + * encoders. + * + * For SkEncodedImageFormat::kWEBP, if quality is 100, it will use lossless compression. Otherwise + * it will use lossy. + * + * For examples of encoding an image to a file or to a block of memory, + * see tools/ToolUtils.h. + */ +SK_API bool SkEncodeImage(SkWStream* dst, const SkPixmap& src, + SkEncodedImageFormat format, int quality); + +/** + * The following helper function wraps SkEncodeImage(). + */ +SK_API bool SkEncodeImage(SkWStream* dst, const SkBitmap& src, SkEncodedImageFormat f, int q); + +/** + * Encode SkPixmap in the given binary image format. + * + * @param src source pixels. + * @param format image format, not all formats are supported. + * @param quality range from 0-100, this is supported by jpeg and webp. + * higher values correspond to improved visual quality, but less compression. + * + * @return encoded data or nullptr if input is bad or format is unsupported. + * + * Will always return nullptr if Skia is compiled without image + * encoders. + * + * For SkEncodedImageFormat::kWEBP, if quality is 100, it will use lossless compression. Otherwise + * it will use lossy. + */ +SK_API sk_sp SkEncodePixmap(const SkPixmap& src, SkEncodedImageFormat format, int quality); + +/** + * Helper that extracts the pixmap from the bitmap, and then calls SkEncodePixmap() + */ +SK_API sk_sp SkEncodeBitmap(const SkBitmap& src, SkEncodedImageFormat format, int quality); + +#endif // SkImageEncoder_DEFINED -- cgit v1.2.3