skia2/include/encode/SkWebpEncoder.h
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

49 lines
1.5 KiB
C++

/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkWebpEncoder_DEFINED
#define SkWebpEncoder_DEFINED
#include "include/encode/SkEncoder.h"
class SkWStream;
namespace SkWebpEncoder {
enum class Compression {
kLossy,
kLossless,
};
struct SK_API Options {
/**
* |fCompression| determines whether we will use webp lossy or lossless compression.
*
* |fQuality| must be in [0.0f, 100.0f].
* If |fCompression| is kLossy, |fQuality| corresponds to the visual quality of the
* encoding. Decreasing the quality will result in a smaller encoded image.
* If |fCompression| is kLossless, |fQuality| corresponds to the amount of effort
* put into the encoding. Lower values will compress faster into larger files,
* while larger values will compress slower into smaller files.
*
* This scheme is designed to match the libwebp API.
*/
Compression fCompression = Compression::kLossy;
float fQuality = 100.0f;
};
/**
* Encode the |src| pixels to the |dst| stream.
* |options| may be used to control the encoding behavior.
*
* Returns true on success. Returns false on an invalid or unsupported |src|.
*/
SK_API bool Encode(SkWStream* dst, const SkPixmap& src, const Options& options);
}
#endif