/* * Copyright 2019 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef SkSharingProc_DEFINED #define SkSharingProc_DEFINED #include #include #include "include/core/SkData.h" #include "include/core/SkImage.h" #include "include/core/SkSerialProcs.h" struct SkSharingSerialContext { // A map from the ids from SkImage::uniqueID() to ids used within the file std::unordered_map fImageMap; // A serial proc that shares images between subpictures // To use this, create an instance of SkSerialProcs and populate it this way. // The client must retain ownership of the context. // auto ctx = std::make_unique() // SkSerialProcs procs; // procs.fImageProc = SkSharingSerialContext::serializeImage; // procs.fImageCtx = ctx.get(); static sk_sp serializeImage(SkImage* img, void* ctx); }; struct SkSharingDeserialContext { // a list of unique images in the order they were encountered in the file // Subsequent occurrences of an image refer to it by it's index in this list. std::vector> fImages; // A deserial proc that can interpret id's in place of images as references to previous images. // Can also deserialize a SKP where all images are inlined (it's backwards compatible) static sk_sp deserializeImage(const void* data, size_t length, void* ctx); }; #endif