mirror of
https://github.com/thorvg/thorvg.git
synced 2025-06-08 05:33:36 +00:00
b77f3ca024
Support the bindings to be more integrable with a system's coherent memory management. Pleaes note that thorvg now only allow the desinated memory allocators here: malloc -> tvg::malloc calloc -> tvg::calloc realloc -> tvg::realloc free -> tvg::free issue: https://github.com/thorvg/thorvg/issues/2652
145 lines
No EOL
3.9 KiB
C++
145 lines
No EOL
3.9 KiB
C++
/*
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* Copyright (c) 2023 - 2025 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 <memory.h>
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#include <webp/decode.h>
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#include "tvgWebpLoader.h"
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/************************************************************************/
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/* Internal Class Implementation */
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/************************************************************************/
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void WebpLoader::run(unsigned tid)
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{
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//TODO: acquire the current colorspace format & pre-multiplied alpha image.
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surface.buf8 = WebPDecodeBGRA(data, size, nullptr, nullptr);
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surface.stride = (uint32_t)w;
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surface.w = (uint32_t)w;
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surface.h = (uint32_t)h;
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surface.channelSize = sizeof(uint32_t);
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surface.cs = ColorSpace::ARGB8888;
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surface.premultiplied = false;
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}
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/************************************************************************/
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/* External Class Implementation */
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/************************************************************************/
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WebpLoader::WebpLoader() : ImageLoader(FileType::Webp)
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{
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}
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WebpLoader::~WebpLoader()
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{
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this->done();
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if (freeData) tvg::free(data);
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data = nullptr;
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size = 0;
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freeData = false;
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WebPFree(surface.buf8);
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}
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bool WebpLoader::open(const char* path)
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{
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#ifdef THORVG_FILE_IO_SUPPORT
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auto webpFile = fopen(path, "rb");
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if (!webpFile) return false;
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auto ret = false;
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//determine size
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if (fseek(webpFile, 0, SEEK_END) < 0) goto finalize;
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if (((size = ftell(webpFile)) < 1)) goto finalize;
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if (fseek(webpFile, 0, SEEK_SET)) goto finalize;
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data = tvg::malloc<unsigned char*>(size);
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if (!data) goto finalize;
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freeData = true;
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if (fread(data, size, 1, webpFile) < 1) goto finalize;
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int width, height;
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if (!WebPGetInfo(data, size, &width, &height)) goto finalize;
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w = static_cast<float>(width);
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h = static_cast<float>(height);
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ret = true;
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finalize:
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fclose(webpFile);
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return ret;
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#else
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return false;
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#endif
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}
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bool WebpLoader::open(const char* data, uint32_t size, TVG_UNUSED const char* rpath, bool copy)
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{
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if (copy) {
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this->data = tvg::malloc<unsigned char*>(size);
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if (!this->data) return false;
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memcpy((unsigned char *)this->data, data, size);
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freeData = true;
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} else {
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this->data = (unsigned char *) data;
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freeData = false;
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}
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int width, height;
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if (!WebPGetInfo(this->data, size, &width, &height)) return false;
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w = static_cast<float>(width);
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h = static_cast<float>(height);
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surface.cs = ColorSpace::ARGB8888;
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this->size = size;
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return true;
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}
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bool WebpLoader::read()
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{
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if (!LoadModule::read()) return true;
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if (!data || w == 0 || h == 0) return false;
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TaskScheduler::request(this);
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return true;
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}
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RenderSurface* WebpLoader::bitmap()
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{
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this->done();
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return ImageLoader::bitmap();
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} |