Changeset 3343 in orxonox.OLD for orxonox

Timestamp:

Jan 5, 2005, 3:39:08 PM (20 years ago)

Author:

bensch

Message:

orxonox/branches/parenting: :texture.cc: swapping textures-cordinates

Location:

orxonox/branches/parenting/src/importer

Files:

• texture.cc (modified) (3 diffs)
• texture.h (modified) (1 diff)

orxonox/branches/parenting/src/importer/texture.cc

@@ -146 +146 @@
   return NULL;
 }
+
+inline void Texture::swap (unsigned char &a, unsigned char &b)
+{
+  unsigned char temp;
+  temp = a;
+  a    = b;
+  b    = temp;
+}
+
 
 /**
@@ -186 +195 @@
       pImage->width  = map->w;
       pImage->data   = (GLubyte*)map->pixels;
+      pImage->bpp    = 3;//map->BytesPerPixel;
       if( !IMG_isPNG(SDL_RWFromFile(imgNameWithPath, "rb")) && !IMG_isJPG(SDL_RWFromFile(imgNameWithPath, "rb")))
         for (int i=0;i<map->h * map->w *3;i+=3)
@@ -193 +203 @@
             pImage->data[i+2] = temp;
           }
+      /* this is the real swapping algorithm */
+      for( int i = 0 ; i < (pImage->height / 2) ; ++i )
+        for( int j = 0 ; j < pImage->width * pImage->bpp; j += pImage->bpp )
+          for(int k = 0; k < pImage->bpp; ++k)
+            swap( pImage->data[ (i * pImage->width * pImage->bpp) + j + k], pImage->data[ ( (pImage->height - i - 1) * pImage->width * pImage->bpp ) + j + k]);
+ 
       this->loadTexToGL (pImage, texture);
     }

orxonox/branches/parenting/src/importer/texture.h

@@ -60 +60 @@
     GLuint width;   //!< The width of the Image.
     GLuint height;  //!< The height of the Image.
-    GLuint bpp;     //!< BitsPerPixel
+    GLuint bpp;     //!< BytesPerPixel
     GLuint type;    //!< Type of the Image.
     GLubyte *data;  //!< The Image Data comes here! DANGER: uncompressed data.
   };
   char* searchTextureInPaths(char* texName) const;
-
+  inline void swap(unsigned char &a, unsigned char &b);
  public: