skia2/include/core/SkImageEncoder.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

71 lines
2.4 KiB
C

/*
* 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
#include "include/core/SkBitmap.h"
#include "include/core/SkData.h"
#include "include/core/SkEncodedImageFormat.h"
#include "include/core/SkStream.h"
/**
* 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().
*/
inline bool SkEncodeImage(SkWStream* dst, const SkBitmap& src, SkEncodedImageFormat f, int q) {
SkPixmap pixmap;
return src.peekPixels(&pixmap) && SkEncodeImage(dst, pixmap, f, 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<SkData> SkEncodePixmap(const SkPixmap& src, SkEncodedImageFormat format, int quality);
/**
* Helper that extracts the pixmap from the bitmap, and then calls SkEncodePixmap()
*/
SK_API sk_sp<SkData> SkEncodeBitmap(const SkBitmap& src, SkEncodedImageFormat format, int quality);
#endif // SkImageEncoder_DEFINED