surface.data_phys = 50*1024*1024; // FIXME
- surface_back.type = 0;
- surface_back.x = 720;
- surface_back.y = 576;
- surface_back.bpp = 32;
- surface_back.bypp = 4;
- surface_back.stride = fb->Stride();
- surface_back.offset = surface.y;
-
int fb_size = surface.stride * surface.y;
- surface_back.data = fb->lfb + fb_size;
- surface_back.data_phys = surface.data_phys + fb_size;
+ if (fb->getNumPages() > 1)
+ {
+ m_enable_double_buffering = 1;
+ surface_back.type = 0;
+ surface_back.x = 720;
+ surface_back.y = 576;
+ surface_back.bpp = 32;
+ surface_back.bypp = 4;
+ surface_back.stride = fb->Stride();
+ surface_back.offset = surface.y;
+ surface_back.data = fb->lfb + fb_size;
+ surface_back.data_phys = surface.data_phys + fb_size;
- fb_size *= 2;
+ fb_size *= 2;
+ } else
+ m_enable_double_buffering = 0;
eDebug("%dkB available for acceleration surfaces.", (fb->Available() - fb_size)/1024);
}
case gOpcode::flip:
{
- gSurface s(surface);
- surface = surface_back;
- surface_back = s;
+ if (m_enable_double_buffering)
+ {
+ gSurface s(surface);
+ surface = surface_back;
+ surface_back = s;
- fb->setOffset(surface_back.offset);
+ fb->setOffset(surface_back.offset);
+ }
break;
}
case gOpcode::waitVSync: