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/*
* GraphLCD graphics library
*
* extformats.c - loading and saving of external formats (via ImageMagick)
*
* based on bitmap.[ch] from text2skin: http://projects.vdr-developer.org/projects/show/plg-text2skin
*
* This file is released under the GNU General Public License. Refer
* to the COPYING file distributed with this package.
*
* (c) 2011 Wolfgang Astleitner <mrwastl AT users sourceforge net>
*/
#include <stdio.h>
#include <stdint.h>
#include <syslog.h>
#include <cstring>
#include "bitmap.h"
#include "extformats.h"
#include "image.h"
#ifdef HAVE_IMAGEMAGICK
#include <Magick++.h>
using namespace Magick;
//#elif defined(HAVE_IMLIB2)
//#include "quantize.h"
//#include <Imlib2.h>
#endif
namespace GLCD
{
using namespace std;
cExtFormatFile::cExtFormatFile()
{
#ifdef HAVE_IMAGEMAGICK
InitializeMagick(NULL);
#endif
}
cExtFormatFile::~cExtFormatFile()
{
}
bool cExtFormatFile::Load(cImage & image, const string & fileName)
{
#ifdef HAVE_IMAGEMAGICK
std::vector<Image> extimages;
try {
uint16_t width = 0;
uint16_t height = 0;
//uint16_t count;
uint32_t delay;
std::vector<Image>::iterator it;
readImages(&extimages, fileName);
if (extimages.size() == 0) {
syslog(LOG_ERR, "ERROR: graphlcd: Couldn't load %s", fileName.c_str());
return false;
}
delay = (uint32_t)(extimages[0].animationDelay() * 10);
image.Clear();
image.SetDelay(delay);
bool firstImage = true;
for (it = extimages.begin(); it != extimages.end(); ++it) {
bool ignoreImage = false;
//if (colors != 0){
//(*it).opacity(OpaqueOpacity);
//(*it).backgroundColor( Color ( 0,0,0,0) );
(*it).quantizeColorSpace( RGBColorspace );
(*it).quantizeColors( 256*256*256 /*colors*/ );
(*it).quantize();
//}
if (firstImage) {
width = (uint16_t)((*it).columns());
height = (uint16_t)((*it).rows());
image.SetWidth(width);
image.SetHeight(height);
firstImage = false;
} else {
if ( (width != (uint16_t)((*it).columns())) || (height != (uint16_t)((*it).rows())) ) {
ignoreImage = true;
}
}
if (! ignoreImage) {
/*
if ((*it).depth() > 8) {
esyslog("ERROR: text2skin: More than 8bpp images are not supported");
return false;
}
*/
uint32_t * bmpdata = new uint32_t[height * width];
//Dprintf("this image has %d colors\n", (*it).totalColors());
bool isMatte = (*it).matte();
const PixelPacket *pix = (*it).getConstPixels(0, 0, (int)width, (int)height);
for (int iy = 0; iy < (int)height; ++iy) {
for (int ix = 0; ix < (int)width; ++ix) {
if ( isMatte && pix->opacity == MaxRGB ) {
bmpdata[iy*width+ix] = cColor::Transparent;
} else {
//bmpdata[iy*width+ix] = (uint32_t)( 0xFF000000 | (int(pix->red * 255 / MaxRGB) << 16) | (int(pix->green * 255 / MaxRGB) << 8) | int(pix->blue * 255 / MaxRGB));
bmpdata[iy*width+ix] = (uint32_t)( (int(255 - (pix->opacity * 255 / MaxRGB)) << 24) | (int(pix->red * 255 / MaxRGB) << 16) | (int(pix->green * 255 / MaxRGB) << 8) | int(pix->blue * 255 / MaxRGB));
}
++pix;
}
}
cBitmap * b = new cBitmap(width, height, bmpdata);
b->SetMonochrome(false);
image.AddBitmap(b);
delete[] bmpdata;
bmpdata = NULL;
}
}
} catch (Exception &e) {
syslog(LOG_ERR, "ERROR: graphlcd: Couldn't load %s: %s", fileName.c_str(), e.what());
return false;
} catch (...) {
syslog(LOG_ERR, "ERROR: graphlcd: Couldn't load %s: Unknown exception caught", fileName.c_str());
return false;
}
return true;
#else
return false;
#endif
}
// to be done ...
bool cExtFormatFile::Save(cImage & image, const string & fileName)
{
return false;
}
} // end of namespace
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