Hi All, I made the transition smooth by destroying only the image and recreating a new one. I now have another problem - memory leak. I first create a pixbuf, scale it and then create an image widget from the scaled pixbuf. I see a memory leak here. I feel that its because i am not freeing pixbuf at all. My code is like this
pixbuf = gdk_pixbuf_new_from_file(filename,NULL ); pixbuf_scaled = gdk_pixbuf_scale_simple(pixbuf,640,480,GDK_INTERP_BILINEAR); image = gtk_image_new_from_pixbuf(pixbuf_scaled); I destroy image whenever i need a new image later. How can i free pixbuf and pixbuf_scaled after image widget is created? On Wed, Aug 27, 2008 at 8:28 PM, richard boaz <[EMAIL PROTECTED]> wrote: > I guess I don't understand why you have to create new windows. Why can you > not use the same window and GtkImage widget to display all images? thus > avoiding having to create them every time? > > > On Wed, Aug 27, 2008 at 4:50 PM, Harinandan S <[EMAIL PROTECTED]>wrote: > >> Hi, >> >> I also tried a sequence in which i create next frame before hand. ie >> >> on startup: >> create window1 >> show window 1 >> create window2 >> >> on next >> show window2 >> create window3 >> >> Similarly on subsequent next clicks. I see no improvement. In the above >> sequence only show window was the work, which made me think that show may be >> taking most of the time in transition. >> I am not able to use the sequence you mentioned since I use GtkImage and >> not GtkDrawingArea. >> On Wed, Aug 27, 2008 at 7:53 PM, richard boaz <[EMAIL PROTECTED]>wrote: >> >>> Hi, >>> >>> Try a different sequence, if possible: >>> >>> 1. at startup, create window and drawing area to display image >>> 2. never destroy window and drawing area, except on application exit >>> 3. on next: >>> 3.1 destroy previous image >>> 3.2 create next image for display >>> 4. invoke the expose callback on the drawing area to display image >>> from 3.2 >>> >>> With this sequence, you are guaranteed that the only work required is to >>> create the next image and display it, i.e., the absolute minimum of work >>> required. >>> >>> richard >>> >>> 2008/8/27 Harinandan S <[EMAIL PROTECTED]> >>> >>>> Hi All, >>>> >>>> I am implementing a image viewer using GTK on DirectFB on an embedded >>>> ARM. When i press next i should get a new image. At present i am putting an >>>> image(VGA size) in a window and destroying the window and creating a new >>>> window with next image. I see that its taking a lot of time in transition. >>>> >>>> At present my sequence is : >>>> >>>> when next button is pressed - >>>> 1. Create new window with new image. >>>> 2. Show new window >>>> 3. Destroy old window >>>> >>>> I thought old window will still be shown until new window is created so >>>> transition will be smooth. But still transition is taking time. >>>> >>>> Is there any better way to do this so that the transition is smooth? >>>> >>>> -- >>>> Regards, >>>> Harinandan S >>>> >>>> _______________________________________________ >>>> gtk-list mailing list >>>> [email protected] >>>> http://mail.gnome.org/mailman/listinfo/gtk-list >>>> >>>> >>> >> >> >> -- >> Regards, >> Harinandan S >> > > -- Regards, Harinandan S
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