- Reestructuración de ficheros y directorios general

- merge v0.01 --> Añadido fileselector
- Añadidas fuentes de Gem y Pure Data
- pix2jpg incluído en Gem. Archivos de construcción de Gem modificados.
- Añadido fichero ompiling.txt con instrucciones de compilación

Gem/plugins/imageSGI/imageSGI.cpp

@@ -0,0 +1,139 @@
+////////////////////////////////////////////////////////
+//
+// GEM - Graphics Environment for Multimedia
+//
+// zmoelnig@iem.kug.ac.at
+//
+// Implementation file 
+//
+//    Copyright (c) 1997-1999 Mark Danks.
+//    Copyright (c) Günther Geiger.
+//    Copyright (c) 2001-2011 IOhannes m zmölnig. forum::für::umläute. IEM. zmoelnig@iem.at
+//    For information on usage and redistribution, and for a DISCLAIMER OF ALL
+//    WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
+//
+/////////////////////////////////////////////////////////
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <string.h>
+#include "imageSGI.h"
+#include "Gem/RTE.h"
+#include "sgiimage.h"
+#include "plugins/PluginFactory.h"
+
+
+using namespace gem::plugins;
+
+REGISTER_IMAGELOADERFACTORY("SGI", imageSGI);
+
+
+/////////////////////////////////////////////////////////
+//
+// imageSGI
+//
+/////////////////////////////////////////////////////////
+// Constructor
+//
+/////////////////////////////////////////////////////////
+imageSGI :: imageSGI(void) 
+{
+  //post("imageSGI");
+}
+imageSGI :: ~imageSGI(void)
+{
+  //post("~imageSGI");
+}
+
+/////////////////////////////////////////////////////////
+// really open the file ! (OS dependent)
+//
+/////////////////////////////////////////////////////////
+bool imageSGI :: load(std::string filename, imageStruct&result, gem::Properties&props)
+{
+  int32 xsize, ysize, csize;
+  if (!sizeofimage(filename.c_str(), &xsize, &ysize, &csize) )
+    return(NULL);
+
+  ::verbose(2, "reading '%s' with SGI", filename.c_str());
+
+  result.xsize=xsize;
+  result.ysize=ysize;
+
+  if (csize == 4 || csize == 3) {
+    result.setCsizeByFormat(GL_RGBA);
+  } else if (csize == 1) {
+    result.setCsizeByFormat(GL_LUMINANCE);
+  } else {
+    //error("GemImageLoad(SGI): unknown color components in SGI file: %s", filename.c_str());
+    return(false);
+  }
+  result.reallocate();
+   
+  unsigned int32 *readData = longimagedata((char *)filename.c_str());
+  if (!readData) {
+    //error("GemImageLoad: error reading SGI image file: %s", filename.c_str());
+    return false;
+  }
+
+  unsigned char *src = reinterpret_cast<unsigned char*>(readData);
+  unsigned char *dst = &(result.data[0]);
+  const int yStride = result.xsize * result.csize;
+
+  // do RGBA data
+  if (csize == 4) {
+    while (ysize--) {
+      unsigned char *pixels = dst;
+      int count = xsize;
+      while(count--) {
+	pixels[chRed]   = src[0];
+	pixels[chGreen] = src[1];
+	pixels[chBlue]  = src[2];
+	pixels[chAlpha] = src[3];
+	pixels += 4;
+	src += 4;
+      }
+      dst += yStride;
+    }
+  }
+  else if (csize == 3) {
+    // do RGB data
+    while (ysize--) {
+      unsigned char *pixels = dst;
+      int count = xsize;
+      while(count--) {
+	pixels[chRed]   = src[0];
+	pixels[chGreen] = src[1];
+	pixels[chBlue]  = src[2];
+	pixels[chAlpha] = 255;;
+	pixels += 4;
+	src += 4;
+      }
+      dst += yStride;
+    }
+  } else  {
+    // do grayscale
+    while (ysize--) {
+      unsigned char *pixels = dst;
+      int count = xsize;
+      while(count--) {
+	pixels[0] = src[0];
+	pixels++;
+	src += 4;
+      }
+      dst += yStride;
+    }
+  }
+
+  free(readData);
+   
+  return true;
+}
+
+bool imageSGI::save(const imageStruct&image, const std::string&filename, const std::string&mimetype, const gem::Properties&props) {
+  return false;
+}
+float imageSGI::estimateSave(const imageStruct&img, const std::string&filename, const std::string&mimetype, const gem::Properties&props) {
+  return 0.;
+}