Hi,
I have a sample code to display a rectangle on the screen. But i need to know,
to display a rectangle is any for loop is needed. and also when i run my exe
file it goes to fullscreen mode and displays rectangle but never returns back.
My code is below:
#include <stdio.h>
#include <unistd.h>
#include <directfb.h>
static IDirectFB *dfb = NULL;
static IDirectFBSurface *primary = NULL;
static int screen_width = 0;
static int screen_height = 0;
#define DFBCHECK(x...) \
{ \
DFBResult err = x; \
\
if (err != DFB_OK) \
{ \
fprintf( stderr, "%s <%d>:\n\t", __FILE__, __LINE__ ); \
DirectFBErrorFatal( #x, err ); \
} \
}
int main (int argc, char **argv)
{
int i,j;
DFBSurfaceDescription dsc;
DFBCHECK (DirectFBInit (&argc, &argv));
DFBCHECK (DirectFBCreate (&dfb));
DFBCHECK (dfb->SetCooperativeLevel (dfb, DFSCL_FULLSCREEN));
dsc.flags = DSDESC_CAPS;
dsc.caps = DSCAPS_PRIMARY | DSCAPS_FLIPPING;
DFBCHECK (dfb->CreateSurface( dfb, &dsc, &primary ));
DFBCHECK (primary->GetSize (primary, &screen_width, &screen_height));
for(i=0;i<screen_height;i++)
{
for(j=0;j<screen_width;j++)
{
DFBCHECK (primary->SetColor (primary, 0x60, 0x80, 0xff, 0x00));
DFBCHECK (primary->FillRectangle (primary, 300, 0, screen_width,
screen_height));
DFBCHECK (primary->Flip (primary, NULL, 0));
}
}
primary->Release( primary );
dfb->Release( dfb );
return 0;
}
The output is like:
./draw_rectangle
=======================| DirectFB 1.0.0 |=======================
(c) 2001-2007 The DirectFB Organization (directfb.org)
(c) 2000-2004 Convergence (integrated media) GmbH
------------------------------------------------------------
(*) DirectFB/Core: Single Application Core. (2008-09-10 15:11)
(*) Direct/Thread: Running 'VT Switcher' (CRITICAL, 2933)...
(*) Direct/Thread: Running 'Linux Input' (INPUT, 2936)...
(*) DirectFB/Input: AT Translated Set 2 keyboard (1) 0.1 (directfb.org)
(*) Direct/Thread: Running 'Linux Input' (INPUT, 2937)...
(*) DirectFB/Input: ImPS/2 Generic Wheel Mouse (2) 0.1 (directfb.org)
(*) Direct/Thread: Running 'Linux Input' (INPUT, 2938)...
(*) DirectFB/Input: PC Speaker (3) 0.1 (directfb.org)
(*) Direct/Thread: Running 'PS/2 Input' (INPUT, 2939)...
(*) DirectFB/Input: IMPS/2 Mouse 1.0 (directfb.org)
(*) Direct/Thread: Running 'Keyboard Input' (INPUT, 2940)...
(*) DirectFB/Input: Keyboard 0.9 (directfb.org)
(*) DirectFB/Genefx: MMX detected and enabled
(*) DirectFB/Graphics: MMX Software Rasterizer 0.6 (directfb.org)
(*) DirectFB/Core/WM: Default 0.3 (directfb.org)
(!) DirectFB/FBDev: Panning display failed!
--> Invalid argument
after this the line "[EMAIL PROTECTED] coding_DirectFB]#" comes for 100 times.
Please let me know the problem in my code.
Thanks and Regards,
Santosh Kumar G.K
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