895c43b28b
Gives more flexibility to the caller to decide whether to use the encoded data returned by refEncodedData(). Provides an implementation that supports the old version of SkPicture::serialize(). TODO: Update Chrome, so we can remove SK_LEGACY_ENCODE_BITMAP entirely BUG=skia:3190 Review URL: https://codereview.chromium.org/784643002
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
/*
|
|
* Copyright 2014 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#ifndef SkPixelSerializer_DEFINED
|
|
#define SkPixelSerializer_DEFINED
|
|
|
|
#include "SkRefCnt.h"
|
|
|
|
class SkData;
|
|
struct SkImageInfo;
|
|
|
|
/**
|
|
* Interface for serializing pixels, e.g. SkBitmaps in an SkPicture.
|
|
*/
|
|
class SkPixelSerializer : public SkRefCnt {
|
|
public:
|
|
virtual ~SkPixelSerializer() {}
|
|
|
|
/**
|
|
* Call to determine if the client wants to serialize the encoded data. If
|
|
* false, serialize another version (e.g. the result of encodePixels).
|
|
*/
|
|
bool useEncodedData(const void* data, size_t len) {
|
|
return this->onUseEncodedData(data, len);
|
|
}
|
|
|
|
/**
|
|
* Call to get the client's version of encoding these pixels. If it
|
|
* returns NULL, serialize the raw pixels.
|
|
*/
|
|
SkData* encodePixels(const SkImageInfo& info, void* pixels, size_t rowBytes) {
|
|
return this->onEncodePixels(info, pixels, rowBytes);
|
|
}
|
|
|
|
protected:
|
|
/**
|
|
* Return true if you want to serialize the encoded data, false if you want
|
|
* another version serialized (e.g. the result of encodePixels).
|
|
*/
|
|
virtual bool onUseEncodedData(const void* data, size_t len) = 0;
|
|
|
|
/**
|
|
* If you want to encode these pixels, return the encoded data as an SkData
|
|
* Return null if you want to serialize the raw pixels.
|
|
*/
|
|
virtual SkData* onEncodePixels(const SkImageInfo&, void* pixels, size_t rowBytes) = 0;
|
|
};
|
|
#endif // SkPixelSerializer_DEFINED
|