Hello, <div class="gmail_quote"> Anybody can help me with directfb backend ? The git version of cairographics I get an infinite loop. I would like to know what I have to do. See the code below ... this example with directfb+cairo doesn't work.. // g++ simple.cpp `pkg-config --cflags --libs directfb cairo` // -------------------------- simple.cpp ------------------------------------ <div> #include <stdio.h> #include <unistd.h> #include <directfb.h> #include <cairo-directfb.h> static int screen_width = 0; static int screen_height = 0; int main (int argc, char **argv) { // init dfb IDirectFB *dfb = NULL; IDirectFBDisplayLayer *layer = NULL; DFBSurfaceDescription dsc; DFBDisplayLayerConfig layer_dsc; DirectFBInit (&argc, &argv); DirectFBCreate (&dfb); dfb->GetDisplayLayer (dfb, DLID_PRIMARY, &layer); layer->SetCooperativeLevel (layer, DLSCL_ADMINISTRATIVE); layer_dsc.flags = DLCONF_BUFFERMODE; layer_dsc.buffermode = DLBM_BACKSYSTEM; layer->SetConfiguration (layer, &layer_dsc); // create window IDirectFBWindow *window = NULL; IDirectFBSurface *surface = NULL; DFBWindowDescription desc; desc.flags = (DFBWindowDescriptionFlags)(DWDESC_POSX | DWDESC_POSY | DWDESC_WIDTH | DWDESC_HEIGHT | DWDESC_CAPS | DWDESC_PIXELFORMAT); desc.caps = (DFBWindowCapabilities)(DSCAPS_NONE | DWCAPS_ALPHACHANNEL); desc.pixelformat = DSPF_ARGB; desc.posx = 0; desc.posy = 0; desc.width = 720; desc.height = 480; layer->CreateWindow (layer, &desc, &window); window->SetOpacity (window, 0xFF); window->GetSurface (window, &surface); // drawing surface->SetColor (surface, 0x40, 0x60, 0x80, 0xff); surface->FillRectangle (surface, 0, 0, screen_width, screen_height); surface->SetColor (surface, 0x80, 0x80, 0xff, 0xff); surface->DrawLine (surface, 0, screen_height / 2, screen_width - 1, screen_height / 2); surface->SetColor (surface, 0x00, 0x00, 0xff, 0xa0); surface->FillRectangle (surface, 100, 100, 300, 300); surface->SetColor (surface, 0x80, 0x00, 0x00, 0xa0); surface->FillRectangle (surface, 200, 200, 300, 300); surface->Flip (surface, NULL, (DFBSurfaceFlipFlags)0); cairo_surface_t *cairo_surface; cairo_t *cairo_context; cairo_surface = cairo_directfb_surface_create(dfb, surface); cairo_context = cairo_create(cairo_surface); cairo_set_source_rgba(cairo_context, 0x80/255.0, 0x80/255.0, 0x80/255.0, 0xff/255.0); cairo_rectangle(cairo_context, 150, 150, 300, 300); cairo_fill(cairo_context); cairo_destroy(cairo_context); cairo_surface_destroy(cairo_surface); sleep (5); // release surface->Release( surface ); dfb->Release( dfb ); return 23; } // ---------------------------------------- end</div> :: GDB :: #0 0xb7e3a5ef in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:630 #1 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #2 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #3 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #4 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #5 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #6 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #7 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #8 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #9 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #10 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #11 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #12 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #13 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #14 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #15 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #16 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #17 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #18 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #19 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #20 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #21 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #22 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #23 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #24 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #25 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #26 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #27 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #28 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #29 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #30 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 #31 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #32 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 ... #2048 0xb7e77298 in _cairo_dfb_surface_map_to_image (abstract_surface=0x808de90, extents=0xbfffecf8) at cairo-directfb-surface.c:200 #2049 0xb7e3a618 in _cairo_surface_map_to_image (surface=0x808de90, extents=0xbfffecf8) at cairo-surface.c:637 ... Best regards. -- Jefferson Ferreira </div>