Changeset 172

Timestamp:

Dec 7, 2010, 10:55:17 AM (13 years ago)

Author:

Torben Dannhauer

Message:

 

Location:

experimental/TerrainTest

Files:

• imageconversion.txt (added)
• myTerrainTechnique.cpp (modified) (1 diff)
• myTerrainTechnique.h (modified) (2 diffs)

experimental/TerrainTest/myTerrainTechnique.cpp

@@ -34 +34 @@
          ImageLayer* il = dynamic_cast<ImageLayer*>( getTerrainTile()->getColorLayer(0) );
          osg::Image* img = il->getImage();
-         img->setInternalTextureFormat( GL_RGBA );
+         //img->setInternalTextureFormat( GL_RGBA );
 
-         osg::ref_ptr<osg::Image> img2 = new osg::Image();
-         img2->setInternalTextureFormat( GL_RGBA );
-         img2->alloc
+         if( img->getPixelFormat() == GL_RGBA )
+                 OSG_ALWAYS << "Format ist RGBA" << std::endl;
+         if( img->getPixelFormat() == GL_RGB )
+                 OSG_ALWAYS << "Format ist RGB" << std::endl;
+          if( img->getPixelFormat() == GL_COMPRESSED_RGB_S3TC_DXT1_EXT )
+                 OSG_ALWAYS << "Format ist GL_COMPRESSED_RGB_S3TC_DXT1_EXT" << std::endl;
+
+         
+
+         //osg::ref_ptr<osg::Image> img2 = new osg::Image();
+         //img2->setInternalTextureFormat( GL_RGBA );
+         //OSG_ALWAYS << "test: " << std::hex << img->getPixelFormat() << std::endl;
 
     GeometryTechnique::init(dirtyMask, assumeMultiThreaded);
 }
+
+void myTerrainTechnique::ConvertImage(osg::ref_ptr<osg::Image> a_toImage, osg::ref_ptr<osg::Image> a_fromImage, GLenum a_pixelFormat, GLenum a_dataType)
+{
+        GLenum dataType = a_fromImage -> getDataType();
+
+        //setInternalTextureFormat( 0); // tmp
+        a_toImage -> allocateImage(
+                a_fromImage -> s(),
+                a_fromImage -> t(),
+                a_fromImage -> r(),
+                a_pixelFormat, a_dataType, a_fromImage -> getPacking());
+
+        //// Wenn Quelle und Ziel RGBA sind
+        //if( a_toImage -> getPixelFormat() == GL_RGBA && a_fromImage -> getPixelFormat() == GL_RGBA)
+        //{
+        //      unsigned nr = a_fromImage->t();
+        //      unsigned nc = a_fromImage->s();
+        //      for (unsigned r = 0; r < nr; ++r)
+        //      {
+        //              for (unsigned c = 0; c < nc; ++c)
+        //              {
+        //                      unsigned char * fromPixelData = a_fromImage -> data(c, nr-r-1);
+        //                      unsigned char *   toPixelData =   a_toImage -> data(c, nr-r-1);
+
+        //                      // Copy r, g, b, a.
+        //                      for( int component = 0; component < 4; ++ component)
+        //                      {
+        //                              My_OSG_Library::OSG_PixelComponent pixelComponent( a_fromImage -> getDataType(), fromPixelData, component /* r, g, b, a */);
+        //                              pixelComponent.Store( a_toImage -> getDataType(), toPixelData, component);
+        //                      }
+        //              }
+        //      }
+        //}
+        //else
+        // Wenn Quelle RGB ist und Ziel RGBA
+        //if( a_toImage -> getPixelFormat() == GL_RGBA && a_fromImage -> getPixelFormat() == GL_RGB)
+        //{
+        //      unsigned nr = a_fromImage -> t();
+        //      unsigned nc = a_fromImage -> s();
+        //      for (unsigned r = 0; r < nr; ++r)
+        //      {
+        //              for (unsigned c = 0; c < nc; ++c)
+        //              {
+        //                      unsigned char * fromPixelData = a_fromImage -> data(c, nr-r-1);
+        //                      unsigned char *   toPixelData =   a_toImage -> data(c, nr-r-1);
+
+        //                      // Copy r, g, b.
+        //                      for( int component = 0; component < 3; ++ component)
+        //                      {
+        //                              My_OSG_Library::OSG_PixelComponent pixelComponent( a_fromImage -> getDataType(), fromPixelData, component /* r, g, b */);
+        //                              pixelComponent.Store( a_toImage -> getDataType(), toPixelData, component);
+        //                      }
+
+        //                      // Initialize alpha to opaque.
+        //                      My_OSG_Library::OSG_PixelComponent::One().Store( a_toImage -> getDataType(), toPixelData, 3);
+        //              }
+        //      }
+        //}
+}

experimental/TerrainTest/myTerrainTechnique.h

@@ -3 +3 @@
 #include <osgTerrain/GeometryTechnique>
 #include <osg/Image>
+
 
 namespace osgTerrain {
@@ -19 +20 @@
 
         virtual void init(int dirtyMask, bool assumeMultiThreaded);
+
+        void ConvertImage(osg::ref_ptr<osg::Image> a_toImage, osg::ref_ptr<osg::Image> a_fromImage, GLenum a_pixelFormat, GLenum a_dataType);
 };