609389af46
ThorVG is a platform-independent portable library for drawing vector-based scene and animation. Fixups to ThorVG integration Update 0.4.0 Update readme. Restore upsample. Missed on scsub. Modules are needed. Restore build. Do the math properly. Force ColorStops to be not const.
156 lines
4.2 KiB
C++
156 lines
4.2 KiB
C++
/*
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* Copyright (c) 2021 Samsung Electronics Co., Ltd. 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 <turbojpeg.h>
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#include "tvgLoader.h"
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#include "tvgJpgLoader.h"
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/************************************************************************/
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/* Internal Class Implementation */
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/************************************************************************/
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void JpgLoader::clear()
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{
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if (freeData) free(data);
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data = nullptr;
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size = 0;
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freeData = false;
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}
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/************************************************************************/
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/* External Class Implementation */
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/************************************************************************/
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JpgLoader::JpgLoader()
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{
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jpegDecompressor = tjInitDecompress();
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}
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JpgLoader::~JpgLoader()
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{
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if (freeData) free(data);
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tjDestroy(jpegDecompressor);
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//This image is shared with raster engine.
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tjFree(image);
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}
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bool JpgLoader::open(const string& path)
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{
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clear();
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auto jpegFile = fopen(path.c_str(), "rb");
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if (!jpegFile) return false;
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auto ret = false;
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//determine size
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if (fseek(jpegFile, 0, SEEK_END) < 0) goto finalize;
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if (((size = ftell(jpegFile)) < 1)) goto finalize;
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if (fseek(jpegFile, 0, SEEK_SET)) goto finalize;
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data = (unsigned char *) malloc(size);
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if (!data) goto finalize;
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freeData = true;
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if (fread(data, size, 1, jpegFile) < 1) goto failure;
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int width, height, subSample, colorSpace;
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if (tjDecompressHeader3(jpegDecompressor, data, size, &width, &height, &subSample, &colorSpace) < 0) {
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TVGERR("JPG LOADER", "%s", tjGetErrorStr());
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goto failure;
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}
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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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goto finalize;
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failure:
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clear();
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finalize:
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fclose(jpegFile);
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return ret;
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}
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bool JpgLoader::open(const char* data, uint32_t size, bool copy)
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{
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clear();
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int width, height, subSample, colorSpace;
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if (tjDecompressHeader3(jpegDecompressor, (unsigned char *) data, size, &width, &height, &subSample, &colorSpace) < 0) return false;
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if (copy) {
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this->data = (unsigned char *) malloc(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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w = static_cast<float>(width);
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h = static_cast<float>(height);
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this->size = size;
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return true;
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}
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bool JpgLoader::read()
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{
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if (image) tjFree(image);
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image = (unsigned char *)tjAlloc(static_cast<int>(w) * static_cast<int>(h) * tjPixelSize[TJPF_BGRX]);
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if (!image) return false;
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//decompress jpg image
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if (tjDecompress2(jpegDecompressor, data, size, image, static_cast<int>(w), 0, static_cast<int>(h), TJPF_BGRX, 0) < 0) {
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TVGERR("JPG LOADER", "%s", tjGetErrorStr());
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tjFree(image);
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image = nullptr;
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return false;
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}
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return true;
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}
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bool JpgLoader::close()
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{
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clear();
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return true;
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}
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const uint32_t* JpgLoader::pixels()
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{
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return (const uint32_t*) image;
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}
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