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https://github.com/thorvg/thorvg.git
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78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/*
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* Copyright (c) 2020 - 2023 the ThorVG project. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _TVG_LOAD_MODULE_H_
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#define _TVG_LOAD_MODULE_H_
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#include "tvgRender.h"
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#include "tvgInlist.h"
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namespace tvg
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{
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struct LoadModule
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{
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INLIST_ITEM(LoadModule);
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//Use either hashkey(data) or hashpath(path)
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uint64_t hashkey;
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string hashpath;
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float w = 0, h = 0; //default image size
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ColorSpace cs = ColorSpace::Unsupported; //must be clarified at open()
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FileType type; //current loader file type
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uint16_t sharing = 0; //reference count
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bool readied = false; //read done already.
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LoadModule(FileType type) : type(type) {}
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virtual ~LoadModule() {}
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virtual bool open(const string& path) { return false; }
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virtual bool open(const char* data, uint32_t size, bool copy) { return false; }
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//Override this if the vector-format has own resizing policy.
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virtual bool resize(Paint* paint, float w, float h) { return false; }
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virtual bool animatable() { return false; } //true if this loader supports animation.
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virtual void sync() {}; //finish immediately if any async update jobs.
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virtual bool read()
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{
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if (readied) return false;
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readied = true;
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return true;
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}
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virtual bool close()
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{
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if (sharing == 0) return true;
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--sharing;
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return false;
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}
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virtual unique_ptr<Surface> bitmap() { return nullptr; }
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virtual Paint* paint() { return nullptr; }
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};
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}
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#endif //_TVG_LOAD_MODULE_H_
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