dfb-photoshow.c

   1 /*
   2  * dfb-photoshow.c
   3  *
   4  * author: hackbard
   5  *
   6  */
   7
   8 #include <stdio.h>
   9 #include <unistd.h>
  10 #include <directfb.h>
  11
  12 IDirectFB *dfb = NULL;
  13 IDirectFBSurface *primary = NULL;
  14 int screen_width  = 0;
  15 int screen_height = 0;
  16
  17 #define DFBCHECK(x...) \
  18 { \
  19  DFBResult err=x; \
  20  if(err!=DFB_OK) { \
  21   fprintf(stderr,"file: %s , line: %d !\n\t",__FILE__,__LINE__); \
  22   DirectFBErrorFatal( #x, err ); \
  23  } \
  24 }
  25
  26 IDirectFBSurface *logo = NULL;
  27 IDirectFBFont *font = NULL;
  28 char *text = "directfb photoshow (written by hackbard 2003)";
  29
  30 int main(int argc,char **argv) {
  31  int i;
  32  DFBSurfaceDescription dsc;
  33  DFBFontDescription font_dsc;
  34  IDirectFBImageProvider *img_prov;
  35
  36  DFBCHECK(DirectFBInit (&argc, &argv));
  37
  38  DFBCHECK(DirectFBCreate(&dfb));
  39  DFBCHECK(dfb->SetCooperativeLevel(dfb,DFSCL_FULLSCREEN));
  40
  41  dsc.flags=DSDESC_CAPS;
  42  dsc.caps=DSCAPS_PRIMARY|DSCAPS_FLIPPING;
  43  DFBCHECK(dfb->CreateSurface(dfb,&dsc,&primary));
  44
  45  font_dsc.flags = DFDESC_HEIGHT;
  46  font_dsc.height = 20;
  47  DFBCHECK(dfb->CreateFont(dfb,"./decker.ttf",&font_dsc,&font));
  48  DFBCHECK(primary->SetFont(primary,font));
  49
  50  DFBCHECK(primary->GetSize(primary,&screen_width,&screen_height));
  51  fprintf(stdout,"dimensions: %dx%d\n",screen_width,screen_height);
  52
  53  /* welcome */
  54  DFBCHECK(primary->SetColor(primary,0x00,0x00,0x00,0x00));
  55  DFBCHECK(primary->FillRectangle(primary,0,0,screen_width,screen_height));
  56  DFBCHECK(primary->SetColor(primary,0x80,0x80,0xff,0xff));
  57  DFBCHECK(primary->DrawString(primary,text,-1,5,screen_height/2,DSTF_LEFT));
  58  DFBCHECK(primary->Flip(primary,NULL,DSFLIP_WAITFORSYNC));
  59  sleep(10);
  60  font->Release(font);
  61
  62  for(i=2;i<argc;i++) {
  63   DFBCHECK(dfb->CreateImageProvider(dfb,argv[i],&img_prov));
  64   DFBCHECK(img_prov->GetSurfaceDescription(img_prov,&dsc));
  65   DFBCHECK(dfb->CreateSurface(dfb,&dsc,&logo ));
  66   DFBCHECK(img_prov->RenderTo(img_prov,logo,NULL));
  67   img_prov->Release(img_prov);
  68   DFBCHECK (primary->SetColor(primary,0x00,0x00,0x00,0x00));
  69   DFBCHECK(primary->FillRectangle(primary,0,0,screen_width,screen_height));
  70   DFBCHECK(primary->SetColor(primary,0x80,0x80,0xff,0xff));
  71   DFBCHECK(primary->DrawLine(primary,0,0,screen_width-1,screen_height-1));
  72   if((screen_width>=dsc.width)&&(screen_height>=dsc.height)) {
  73    DFBCHECK(primary->Blit(primary,logo,NULL,(screen_width-dsc.width)/2,(screen_height-dsc.height)/2));
  74   }
  75   else {
  76    DFBCHECK(primary->StretchBlit(primary,logo,NULL,NULL));
  77   }
  78   DFBCHECK(primary->Flip(primary,NULL,DSFLIP_WAITFORSYNC));
  79   sleep(atoi(argv[1]));
  80   logo->Release(logo);
  81  }
  82
  83  primary->Release(logo);
  84  primary->Release(primary);
  85  dfb->Release(dfb);
  86
  87  return 23; /* ;) */
  88 }
  89