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/*
* Copyright (c) 2021 - 2022 Samsung Electronics Co., Ltd. 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 "tvgLoader.h"
#include "tvgJpgLoader.h"
/************************************************************************/
/* Internal Class Implementation */
/************************************************************************/
void JpgLoader::clear()
{
jpgdDelete(decoder);
if (freeData) free(data);
decoder = nullptr;
data = nullptr;
freeData = false;
}
/************************************************************************/
/* External Class Implementation */
/************************************************************************/
JpgLoader::~JpgLoader()
{
jpgdDelete(decoder);
if (freeData) free(data);
free(image);
}
bool JpgLoader::open(const string& path)
{
clear();
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;
}
bool JpgLoader::open(const char* data, uint32_t size, bool copy)
{
clear();
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 (!decoder || w <= 0 || h <= 0) return false;
TaskScheduler::request(this);
return true;
}
bool JpgLoader::close()
{
this->done();
clear();
return true;
}
unique_ptr<Surface> JpgLoader::bitmap()
{
this->done();
if (!image) return nullptr;
auto surface = static_cast<Surface*>(malloc(sizeof(Surface)));
surface->buffer = (uint32_t*)(image);
surface->stride = static_cast<uint32_t>(w);
surface->w = static_cast<uint32_t>(w);
surface->h = static_cast<uint32_t>(h);
surface->cs = SwCanvas::ARGB8888;
return unique_ptr<Surface>(surface);
}
void JpgLoader::run(unsigned tid)
{
if (image) {
free(image);
image = nullptr;
}
image = jpgdDecompress(decoder);
}
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