[Kde-imaging] [Bug 90183] Slideshow with OpenGL gives me a blank screen

[Renchi Raju]

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http://bugs.kde.org/show_bug.cgi?id=90183        
renchi pooh tam uiuc edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED



------- Additional Comments From renchi pooh tam uiuc edu  2004-09-30 23:32 -------
CVS commit by pahlibar: 


check for max texture value allowed before generating the textures. one user had
a rather low texture size of 512. fixed problem over priv mail conversation.
CCMAIL: 90183-done bugs kde org


  M +20 -2     slideshowgl.cpp   1.9


--- kdeextragear-libs-1/kipi-plugins/slideshow/slideshowgl.cpp  #1.8:1.9
 @ -50,6 +50,6  @ SlideShowGL::SlideShowGL(const QStringLi
     resize(QApplication::desktop()->size());
 
-    width_  = QMIN( 1024, 1 << (int)ceil(log((float)width())/log((float)2)) );
-    height_ = QMIN( 1024, 1 << (int)ceil(log((float)height())/log((float)2)) );
+    width_  = 64;
+    height_ = 64;
 
     // --------------------------------------------------
 @ -119,4 +119,22  @ void SlideShowGL::initializeGL()
     glClearDepth(1.0f);
 
+    // get the maximum texture value.
+    GLint maxTexVal;
+    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTexVal);
+
+    // allow only maximum texture value of 1024. anything bigger and things slow down
+    maxTexVal = QMIN(1024, maxTexVal);
+
+    width_  = QApplication::desktop()->width();
+    height_ = QApplication::desktop()->height();
+
+    width_  = 1 << (int)ceil(log((float)width_)/log((float)2)) ;
+    height_ = 1 << (int)ceil(log((float)height_)/log((float)2));
+    
+    width_  = QMIN( maxTexVal, width_ );
+    height_ = QMIN( maxTexVal, height_ );
+
+    // load the first image
+
     loadImage();
 }