1 files changed, 140 insertions, 0 deletions
diff --git a/glcdgraphics/extformats.c b/glcdgraphics/extformats.c
new file mode 100644
index 0000000..0d39880
--- /dev/null
+++ b/glcdgraphics/extformats.c
@@ -0,0 +1,140 @@
+/*
+ * 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());
+
+        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) {
+            bmpdata[iy*width+ix] = (uint32_t)((~int(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