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/*
* Copyright (C) 2014 Team Kodi
* http://kodi.tv
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "GIFDecoder.h"
#include "GifHelper.h"
#include <cstring>
// returns true for gif files, otherwise returns false
bool GIFDecoder::CanDecode(const std::string &filename)
{
return std::string::npos != filename.rfind(".gif",filename.length() - 4, 4);
}
bool GIFDecoder::LoadFile(const std::string &filename, DecodedFrames &frames)
{
int n = 0;
GifHelper *gifImage = new GifHelper();
if (gifImage->LoadGif(filename.c_str()))
{
auto extractedFrames = gifImage->GetFrames();
n = extractedFrames.size();
if (n > 0)
{
unsigned int height = gifImage->GetHeight();
unsigned int width = gifImage->GetWidth();
unsigned int pitch = gifImage->GetPitch();
unsigned int frameSize = pitch * height;
for (unsigned int i = 0; i < extractedFrames.size(); i++)
{
DecodedFrame frame;
frame.rgbaImage.pixels = (char *)new char[frameSize];
memcpy(frame.rgbaImage.pixels, extractedFrames[i]->m_pImage, frameSize);
frame.rgbaImage.height = height;
frame.rgbaImage.width = width;
frame.rgbaImage.bbp = 32;
frame.rgbaImage.pitch = pitch;
frame.delay = extractedFrames[i]->m_delay;
frames.frameList.push_back(frame);
}
}
frames.user = gifImage;
frames.destroyFN = &gifDestroyFN;
return true;
}
else
{
delete gifImage;
return false;
}
}
void GIFDecoder::FreeDecodedFrames(DecodedFrames &frames)
{
for (unsigned int i = 0; i < frames.frameList.size(); i++)
{
delete [] frames.frameList[i].rgbaImage.pixels;
}
delete (GifHelper *)frames.user;
frames.clear();
}
void GIFDecoder::gifDestroyFN(void* user)
{
delete (GifHelper *)user;
}
void GIFDecoder::FillSupportedExtensions()
{
m_supportedExtensions.emplace_back(".gif");
}
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