skia2/include/core/SkImageEncoder.h
Hal Canary 1fcc40474f SkEncodeImage: no more link-time registration
Also, no more SkImageEncoder class.

SK_SUPPORT_LEGACY_IMAGE_ENCODER_CLASS now only guards some
old API shims.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5006

Change-Id: I3797f584f3e8e12ade10d31e8733163453725f40
Reviewed-on: https://skia-review.googlesource.com/5006
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2016-11-30 22:48:56 +00:00

75 lines
2.6 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 "SkBitmap.h"
#include "SkEncodedImageFormat.h"
#include "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, not all formats respect quality.
*
* @return false iff input is bad or format is unsupported.
*
* Will always return false if Skia is compiled without image
* encoders.
*
* For examples of encoding an image to a file or to a block of memory,
* see tools/sk_tool_utils.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) {
SkAutoLockPixels autoLockPixels(src);
SkPixmap pixmap;
return src.peekPixels(&pixmap) && SkEncodeImage(dst, pixmap, f, q);
}
//TODO(halcanary): remove this code once all changes land.
#ifdef SK_SUPPORT_LEGACY_IMAGE_ENCODER_CLASS
class SkImageEncoder {
public:
enum Type {
#ifdef GOOGLE3
kUnknown_Type = (int)SkEncodedImageFormat::kUnknown,
#endif
kBMP_Type = (int)SkEncodedImageFormat::kBMP,
kGIF_Type = (int)SkEncodedImageFormat::kGIF,
kICO_Type = (int)SkEncodedImageFormat::kICO,
kJPEG_Type = (int)SkEncodedImageFormat::kJPEG,
kPNG_Type = (int)SkEncodedImageFormat::kPNG,
kWBMP_Type = (int)SkEncodedImageFormat::kWBMP,
kWEBP_Type = (int)SkEncodedImageFormat::kWEBP,
kKTX_Type = (int)SkEncodedImageFormat::kKTX,
};
static SkData* EncodeData(const SkBitmap& src, Type t, int quality) {
SkDynamicMemoryWStream buf;
return SkEncodeImage(&buf, src, (SkEncodedImageFormat)t, quality)
? buf.detachAsData().release() : nullptr;
}
static bool EncodeFile(const char path[], const SkBitmap& src, Type t, int quality) {
SkFILEWStream file(path);
return SkEncodeImage(&file, src, (SkEncodedImageFormat)t, quality);
}
static bool EncodeStream(SkWStream* dst, const SkBitmap& bm, Type t, int quality) {
return SkEncodeImage(dst, bm, (SkEncodedImageFormat)t, quality);
}
};
#endif // SK_SUPPORT_LEGACY_IMAGE_ENCODER_CLASS
#endif // SkImageEncoder_DEFINED