[directfb-users] Incorrect pitch for window_surface

[kaushik.choudhary]

Hello,   I have been trying to display data captured from a webcam. When I use a surface under the Cooperative Level normal I can see something which seems like the webcam output as when I move the cam the data on the display on the surface seems to catch that. This is probably because of improper handling of the data format.   However, when I try to create a Window on the primary layer and then try to display the captured data (which I get using a read on the /dev/video0) on the window’s surface I get this:       ---------------------- DirectFB v0.9.25 ---------------------              (c) 2000-2002  convergence integrated media GmbH               (c) 2002-2004  convergence GmbH                           -----------------------------------------------------------   (*) DirectFB/Core: Single Application Core. (2006-10-06 05:28) (*) Direct/Memcpy: Using MMXEXT optimized memcpy() (*) Direct/Thread: Running 'VT Switcher' (CRITICAL, 10535)... (*) Direct/Thread: Running 'PS/2 Input' (INPUT, 10536)...  (!!!)  *** UNIMPLEMENTED [fusion_reactor_set_lock] *** [reactor.c:853] (*) DirectFB/Input: IMPS/2 Mouse 1.0 (Convergence GmbH) (*) Direct/Thread: Running 'Keyboard Input' (INPUT, 10537)... (*) DirectFB/Input: Keyboard 0.9 (convergence integrated media GmbH) (*) DirectFB/Genefx: MMX detected and enabled (*) DirectFB/Graphics: MMX Software Rasterizer 0.6 (convergence integrated media GmbH) (*) DirectFB/Core/WM: Default 0.2 (Convergence GmbH)  (!) DirectFB/FBDev: Panning display failed!     --> Invalid argument (!) DirectFB/FBDev: Panning display failed!     --> Invalid argument +++++++++++ surface_pitch (640), win.width(320), win.height(240) (!) [10514:    0.000] --> Caught signal 11 (at 0xb7010000, invalid permissions) <-- Killed   The ++++++++ is the result of a printf statement I used and it clearly shows that the surface_pitch is not correct for the window that I’m creating. It is retaining the width of the Layer.   What mistakes am I committing? Please guide me.     Kaushik Choudhary   The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com

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