137 lines
3.4 KiB
C++
137 lines
3.4 KiB
C++
/*
|
|
* Copyright (c) 2021 - 2024 the ThorVG project. All rights reserved.
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include <memory.h>
|
|
#include "tvgJpgLoader.h"
|
|
|
|
/************************************************************************/
|
|
/* Internal Class Implementation */
|
|
/************************************************************************/
|
|
|
|
void JpgLoader::clear()
|
|
{
|
|
jpgdDelete(decoder);
|
|
if (freeData) free(data);
|
|
decoder = nullptr;
|
|
data = nullptr;
|
|
freeData = false;
|
|
}
|
|
|
|
|
|
void JpgLoader::run(unsigned tid)
|
|
{
|
|
surface.buf8 = jpgdDecompress(decoder);
|
|
surface.stride = static_cast<uint32_t>(w);
|
|
surface.w = static_cast<uint32_t>(w);
|
|
surface.h = static_cast<uint32_t>(h);
|
|
surface.cs = ColorSpace::ARGB8888;
|
|
surface.channelSize = sizeof(uint32_t);
|
|
surface.premultiplied = true;
|
|
|
|
clear();
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* External Class Implementation */
|
|
/************************************************************************/
|
|
|
|
JpgLoader::JpgLoader() : ImageLoader(FileType::Jpg)
|
|
{
|
|
|
|
}
|
|
|
|
|
|
JpgLoader::~JpgLoader()
|
|
{
|
|
done();
|
|
clear();
|
|
free(surface.buf8);
|
|
}
|
|
|
|
|
|
bool JpgLoader::open(const string& path)
|
|
{
|
|
#ifdef THORVG_FILE_IO_SUPPORT
|
|
int width, height;
|
|
decoder = jpgdHeader(path.c_str(), &width, &height);
|
|
if (!decoder) return false;
|
|
|
|
w = static_cast<float>(width);
|
|
h = static_cast<float>(height);
|
|
|
|
return true;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
|
|
bool JpgLoader::open(const char* data, uint32_t size, bool copy)
|
|
{
|
|
if (copy) {
|
|
this->data = (char *) malloc(size);
|
|
if (!this->data) return false;
|
|
memcpy((char *)this->data, data, size);
|
|
freeData = true;
|
|
} else {
|
|
this->data = (char *) data;
|
|
freeData = false;
|
|
}
|
|
|
|
int width, height;
|
|
decoder = jpgdHeader(this->data, size, &width, &height);
|
|
if (!decoder) return false;
|
|
|
|
w = static_cast<float>(width);
|
|
h = static_cast<float>(height);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
bool JpgLoader::read()
|
|
{
|
|
if (!LoadModule::read()) return true;
|
|
|
|
if (!decoder || w == 0 || h == 0) return false;
|
|
|
|
TaskScheduler::request(this);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool JpgLoader::close()
|
|
{
|
|
if (!LoadModule::close()) return false;
|
|
this->done();
|
|
return true;
|
|
}
|
|
|
|
|
|
RenderSurface* JpgLoader::bitmap()
|
|
{
|
|
this->done();
|
|
return ImageLoader::bitmap();
|
|
}
|