Hello,
When I try and run the following program on my Matrox G450 using CVS version
(before major restructuring) and the 2.6 fbdev I get a non deterministic
behaviour : each time I get a different output (but never what I want :-( ).
I have the impression that the fbdev could be causing this, or am I just
writing wrong code ? Could someone with a Matrox card try this out ?
Thanks a lot !!!
Kristof
_______________________
#include <stdio.h>
#include <unistd.h>
#include <directfb.h>
#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)
{
IDirectFB *dfb = NULL;
IDirectFBDisplayLayer *secondaryLayer = NULL;
IDirectFBSurface *primarySurface = NULL;
IDirectFBSurface *secondarySurface = NULL;
int screen_width = 500;
int screen_height = 500;
DFBSurfaceDescription dsc;
DFBDisplayLayerConfig conf;
DFBCHECK (DirectFBInit (&argc, &argv));
DirectFBSetOption ("bg-none", NULL);
DirectFBSetOption("no-cursor",NULL);
DFBCHECK (DirectFBCreate (&dfb));
dfb->SetCooperativeLevel (dfb, DFSCL_FULLSCREEN);
dsc.flags = DSDESC_CAPS;
dsc.caps = DSCAPS_PRIMARY;
DFBCHECK (dfb->CreateSurface( dfb, &dsc, &primarySurface ));
DFBCHECK (primarySurface->Clear( primarySurface, 0, 0, 0, 0xff ));
DFBCHECK (primarySurface->SetDrawingFlags(primarySurface,
DSDRAW_BLEND));
DFBCHECK (primarySurface->GetSize (primarySurface, &screen_width,
&screen_height));
DFBCHECK (primarySurface->SetColor (primarySurface, 0xff, 0x00, 0x00,
0x3f));
DFBCHECK (primarySurface->FillRectangle (primarySurface,
0, 0,
screen_width / 2, screen_height / 2));
DFBCHECK (primarySurface->Flip (primarySurface, NULL, 0));
sleep (3);
primarySurface->Release( primarySurface );
DFBCHECK (dfb->GetDisplayLayer(dfb, 1, &secondaryLayer));
DFBCHECK (secondaryLayer->SetCooperativeLevel(secondaryLayer,
DLSCL_EXCLUSIVE));
//DFBCHECK (secondaryLayer->SetScreenLocation(secondaryLayer, 0.0 ,
0.0, 1.0, 1.0));
conf.flags = (DFBDisplayLayerConfigFlags)(DLCONF_BUFFERMODE |
DLCONF_PIXELFORMAT);
conf.buffermode = DLBM_BACKVIDEO;
conf.pixelformat = DSPF_I420;
DFBCHECK (secondaryLayer->SetConfiguration(secondaryLayer, &conf));
DFBCHECK (secondaryLayer->GetSurface(secondaryLayer,
&secondarySurface));
DFBCHECK (secondarySurface->GetSize (secondarySurface, &screen_width,
&screen_height));
DFBCHECK (secondarySurface->SetDrawingFlags(secondarySurface,
DSDRAW_BLEND));
DFBCHECK (secondarySurface->SetColor (secondarySurface, 0x00, 0xff,
0x00, 0x7f));
DFBCHECK (secondarySurface->FillRectangle (secondarySurface,
screen_width /
4, screen_height / 4, screen_width / 2, screen_height / 2));
DFBCHECK (secondarySurface->Flip (secondarySurface, NULL, 0));
sleep (3);
DFBCHECK (secondarySurface->SetColor (secondarySurface, 0x00, 0xff,
0x00, 0x7f));
DFBCHECK (secondarySurface->FillRectangle (secondarySurface,
screen_width /
4, screen_height / 4, screen_width / 2, screen_height / 2));
DFBCHECK (secondarySurface->SetColor (secondarySurface, 0x00, 0x00,
0xff, 0x7f));
DFBCHECK (secondarySurface->FillRectangle (secondarySurface,
screen_width /
2, screen_height / 2, screen_width / 2, screen_height / 2));
DFBCHECK (secondarySurface->Flip (secondarySurface, NULL, 0));
sleep (3);
secondarySurface->Release( secondarySurface );
secondaryLayer->Release( secondaryLayer );
dfb->Release( dfb );
return 23;
}
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