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https://github.com/thorvg/thorvg.git
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e9b12aa9f7
It's not efficient to handle alpha premultiplying in every loader. The backend engine should be responsible for it. Now, we can remove duplicate code.
94 lines
2.8 KiB
C++
94 lines
2.8 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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#include <fstream>
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#include <string.h>
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#include "tvgLoader.h"
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#include "tvgRawLoader.h"
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/************************************************************************/
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/* Internal Class Implementation */
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/************************************************************************/
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/************************************************************************/
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/* External Class Implementation */
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/************************************************************************/
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RawLoader::~RawLoader()
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{
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if (copy && content) {
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free((void*)content);
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content = nullptr;
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}
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}
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bool RawLoader::open(const uint32_t* data, uint32_t w, uint32_t h, bool copy)
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{
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if (!data || w == 0 || h == 0) return false;
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this->w = (float)w;
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this->h = (float)h;
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this->copy = copy;
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if (copy) {
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content = (uint32_t*)malloc(sizeof(uint32_t) * w * h);
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if (!content) return false;
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memcpy((void*)content, data, sizeof(uint32_t) * w * h);
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}
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else content = const_cast<uint32_t*>(data);
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cs = ColorSpace::ARGB8888;
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return true;
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}
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bool RawLoader::read()
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{
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return true;
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}
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bool RawLoader::close()
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{
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return true;
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}
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unique_ptr<Surface> RawLoader::bitmap()
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{
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if (!content) return nullptr;
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//TODO: It's better to keep this surface instance in the loader side
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auto surface = new Surface;
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surface->buffer = content;
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surface->stride = static_cast<uint32_t>(w);
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surface->w = static_cast<uint32_t>(w);
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surface->h = static_cast<uint32_t>(h);
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surface->cs = cs;
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surface->premultiplied = true;
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surface->owner = true;
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return unique_ptr<Surface>(surface);
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}
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